ZuoTi.Pro
Question

Determine the mean and standard deviation of your sample. Find the 80%, 95%, and 99% confidence...

  • Determine the mean and standard deviation of your sample.
  • Find the 80%, 95%, and 99% confidence intervals.
  • Make sure to list the margin of error for the 80%, 95%, and 99% confidence interval.
  • Create your own confidence interval (you cannot use 80%, 95%, and 99%) and make sure to show your work. Make sure to list the margin of error.
  1. Problem Analysis—Write a half-page reflection.
  • What trend do you see takes place to the confidence interval as the confidence level rises? Explain mathematically why that takes place.
  • Provide a sentence for each confidence interval created in part c) which explains what the confidence interval means in context of topic of your project.
  • Explain how Part I of the project has helped you understand confidence intervals better?

The data is from: https://www.bea.gov/data/consumer-spending/state --> DATA ONLY --> (MILLIONS OF DOLLARS) 2018

My Data:

Connecticut
Maine
Massachusetts
New Hampshire
Rhode Island
Vermont
Delaware
District of Columbia
Maryland
New Jersey
New York
Pennsylvania
Illinois
Indiana
Michigan
Ohio
Wisconsin
Iowa
Kansas
Minnesota
Missouri
Nebraska
North Dakota
South Dakota
Alabama
Arkansas
Florida
Georgia
Kentucky
Louisiana
Mississippi
North Carolina
South Carolina
Tennessee
Virginia
West Virginia
Arizona
New Mexico
Oklahoma
Texas
Colorado
Idaho
Montana
Utah
Wyoming
Alaska
California
Hawaii
Nevada
Oregon
Washington
Total Personal Consumption Expenditures by State and Region
189,141
60,894
380,277
70,699
47,731
31,284
42,655
44,361
282,921
469,735
1,029,888
573,815
574,429
252,150
407,475
477,536
246,818
122,914
110,339
266,161
245,425
80,432
36,863
38,950
165,716
102,755
876,422
383,834
157,066
168,245
92,831
370,883
176,365
246,025
384,479
65,138
257,505
75,977
136,037
1,120,665
251,595
64,514
45,359
119,240
24,707
37,053
1,858,421
69,262
125,801
179,015
350,959
math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Answer :

1) we have to find mean and standard deviation

By using Excel:

state no. Total Personal Consumption Expenditures
1 189,141
2 60,894
3 380,277
4 70,699
5 47,731
6 31,284
7 42,655
8 44,361
9 282,921
10 469,735
11 1,029,888
12 573,815
13 574,429
14 252,150
15 407,475
16 477,536
17 246,818
18 122,914
19 110,339
20 266,161
21 245,425
22 80,432
23 36,863
24 38,950
25 165,716
26 102,755
27 876,422
28 383,834
29 157,066
30 168,245
31 92,831
32 370,883
33 176,365
34 246,025
35 384,479
36 65,138
37 257,505
38 75,977
39 136,037
40 1,120,665
41 251,595
42 64,514
43 45,359
44 119,240
45 24,707
46 37,053
47 1,858,421
48 69,262
49 125,801
50 179,015
51 350,959
mean 274,289
standard deviation 332388.9895

Mean = 274,289

Standard deviation = 332388.9895

2) we obtain confidence intervals for given data.

i] for Confidence Level: 80%

Sample Size: 51
Sample Mean: 274
Standard Deviation: 332388.9895
Confidence Level: 80%

  80% Confidence Interval: 274 ± 59600
(-59300 to 59900)

ii ]  for Confidence Level: 95%

Sample Size: 51
Sample Mean: 274
Standard Deviation: 332388.9895
Confidence Level: 95%

  95% Confidence Interval: 274 ± 91200
(-90900 to 91500)

iii]   for Confidence Level: 99%

Sample Size: 51
Sample Mean: 274
Standard Deviation: 332388.9895
Confidence Level: 99%

99% Confidence Interval: 274 ± 120000
(-120000 to 120000)

3) From above 3 confidence intervals we conclude that lower limits of confidence intervals are decreases and upper limits of confidence intervals are increases .

0 0
Add a comment
Know the answer?
Add Answer to:
Determine the mean and standard deviation of your sample. Find the 80%, 95%, and 99% confidence...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • My project has to do with the average tuition for in-state students per semester and the proportion of western states th...

    My project has to do with the average tuition for in-state students per semester and the proportion of western states that pay less than $5000 for tuition. Western states include Alaska, Arizona, California, Colorado, Hawaii, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyoming. I need help with the best method of graphing this and how to create the confidence intervals for 95% for BOTH the average tuition for in state students AND the proportion of western states that...

  • Rate 3% 12% 14% 8% 9% 596 State Rate State 1090 | Kansas 11% Kentucky 13%...

    Rate 3% 12% 14% 8% 9% 596 State Rate State 1090 | Kansas 11% Kentucky 13% Louisiana 1296 | Maine 8% Maryland 690 590 | Michigan 890 | Minnesota 996 | Mississippi 1196 | Missouri 1390 | Montana 1090 | Nebraska 996 | Nevada 996| New Hampshire 590 796 | New Jersey 1290 | South Dakota 996 | Tennessee Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa New Mexico New York North Carolina...

  • C++ how can I input this data correctly? State, Coal, Natural Gas, Fuel Oil, Jet Fuel,HGL...

    C++ how can I input this data correctly? State, Coal, Natural Gas, Fuel Oil, Jet Fuel,HGL Other, Motor Gasoline, Residual Fuel Oil, Nuclear Electric Power, Hydroelectric Power, Wood and Waste, Fuel Ethanol, Geothermal, Solar, Wind Alabama,410.20,715.70,169.40,18.00,44.90,309.10,11.90,417.30,64.50,167.40,23.70,0.10,0.40,0.00 Alaska,16.60,330.90,64.40,104.80,28.60,35.20,0.00,0.00,15.30,2.30,0.00,0.20,0.05,1.60 Arizona,323.90,371.50,149.10,24.90,33.90,324.30,0.00,338.60,66.20,6.60,24.70,0.30,52.80,5.00 Arkansas,246.40,315.70,113.60,8.50,36.40,170.10,0.05,140.40,33.00,77.90,13.00,0.80,0.40,0.00 California,32.10,2248.40,560.40,672.60,383.00,1714.40,145.80,197.80,267.20,137.00,131.30,107.90,267.10,124.70 Colorado,321.50,501.10,103.90,52.50,50.20,263.80,0.00,0.00,17.60,10.60,20.20,0.80,9.50,87.00 Connecticut,2.30,254.70,94.90,9.50,25.10,168.30,0.80,173.40,2.10,25.20,12.90,0.05,4.10,0.10 Delaware,8.20,113.60,14.30,0.70,32.80,54.30,1.10,0.00,0.00,1.80,4.20,0.40,1.10,0.05 DC,0.05,30.10,2.80,0.00,3.45,13.30,0.00,0.00,0.00,0.80,1.00,0.05,0.30,0.00 Florida,426.20,1414.10,312.10,155.40,86.30,1008.80,59.10,306.70,1.60,182.50,69.80,10.10,30.20,0.00 Georgia,399.30,728.00,226.50,29.30,58.40,540.30,8.50,360.60,31.10,214.20,37.40,0.30,10.20,0.00 Hawaii,16.40,0.20,26.20,74.30,20.90,52.80,60.90,0.00,0.80,8.50,4.00,2.40,9.80,5.90 Idaho,2.40,110.30,70.90,5.50,13.20,88.20,0.05,0.00,83.40,22.70,6.70,2.20,0.40,23.80 Illinois,702.50,1045.20,297.30,161.00,241.50,544.70,0.60,1031.30,1.20,24.30,40.30,2.00,2.00,98.40 Indiana,948.40,780.10,235.00,50.20,121.10,357.50,1.70,0.00,3.90,30.40,25.20,4.60,2.40,45.20 Iowa,298.00,317.20,150.10,5.50,84.90,192.10,0.05,49.20,8.50,20.10,16.30,1.30,0.60,185.30 Kansas,253.10,278.10,119.50,8.70,59.80,154.20,3.60,86.20,0.30,6.30,10.70,1.00,0.10,130.30 Kentucky,736.60,284.10,156.20,68.00,123.70,250.80,0.05,0.00,32.10,35.20,17.80,2.70,0.40,0.00 Louisiana,140.50,1697.40,192.20,166.10,1253.90,254.50,37.70,179.40,10.20,136.30,19.50,1.80,1.80,0.00 Maine,2.20,54.50,70.70,6.50,20.30,89.60,3.80,0.00,27.70,90.60,6.60,0.10,0.40,15.40 Maryland,162.90,229.60,98.50,8.80,33.70,306.50,0.70,154.40,12.90,26.00,23.20,0.60,6.80,4.90 Massachusetts,20.10,442.70,144.60,60.90,33.90,315.10,4.70,56.60,6.60,37.40,24.10,0.90,17.50,2.00 Michigan,471.20,927.50,171.70,22.80,119.00,536.90,3.20,330.00,14.40,92.90,37.30,5.20,1.10,43.40 Minnesota,261.20,466.50,160.30,27.30,113.60,296.10,0.80,145.00,11.20,72.50,27.60,1.10,0.60,91.70 Mississippi,61.20,563.40,122.00,97.20,63.00,196.10,3.60,61.70,0.00,56.30,15.00,1.00,0.10,0.00 Missouri,639.90,273.60,188.10,16.60,57.00,362.70,0.10,98.60,11.70,26.40,26.10,0.40,1.90,10.40 Montana,161.90,77.60,50.20,5.40,50.80,61.00,0.00,0.00,93.10,4.40,4.70,0.30,0.10,19.80 Nebraska,240.50,172.90,111.40,7.50,17.70,102.20,0.00,97.80,7.90,4.10,7.10,1.20,0.10,35.10 Nevada,30.80,316.00,64.30,35.00,14.10,131.80,0.00,0.00,16.50,2.50,10.00,32.50,33.30,3.20 New Hampshire,5.30,59.50,40.30,2.50,21.60,80.20,1.50,112.60,10.60,35.80,6.00,0.05,0.50,4.00 New Jersey,17.50,795.10,176.30,187.20,109.40,469.70,25.00,312.60,0.10,28.40,35.90,0.50,22.20,0.20 New Mexico,197.10,259.60,92.30,7.20,30.80,107.80,0.00,0.00,1.40,6.30,8.30,0.50,8.60,33.30 New York,29.70,1335.10,330.10,201.20,98.70,635.30,40.00,434.80,248.20,76.50,46.60,1.20,10.60,36.40 North Carolina,381.80,540.20,190.90,14.90,81.50,531.00,0.50,447.50,40.80,110.20,36.70,1.00,33.40,0.10 North Dakota,394.60,105.80,84.80,5.60,27.40,49.60,0.00,0.00,17.70,2.60,3.80,1.00,0.05,75.40 Ohio,825.30,996.90,290.50,67.40,180.50,576.80,3.90,175.90,4.60,52.70,40.10,3.40,1.90,11.50 Oklahoma,221.80,738.40,175.00,52.60,83.30,222.40,2.60,0.00,23.80,31.00,15.50,0.05,0.10,185.30 Oregon,19.40,249.80,100.20,28.60,24.60,178.50,0.80,0.00,319.00,59.40,13.50,2.90,3.10,66.10 Pennsylvania,734.80,1363.80,327.30,69.20,188.70,556.60,3.50,867.30,21.90,104.70,39.80,2.20,4.10,32.10...

  • Please explain how each step is performed. TABLE 1. SOFT DRINK DEMAND DATA State Cans/Capita/Yr 6-Pack...

    Please explain how each step is performed. TABLE 1. SOFT DRINK DEMAND DATA State Cans/Capita/Yr 6-Pack Price ($) IncomelCapita ($1,000) Mean Temp. (F) Alabama Arizona Arkansas California Colorado Connecticut Delaware 200 150 237 135 1.99 1.93 15.3 18.1 25.2 16.2 1.99 242 295 64 Georgia Idaho Illinois Indiana lowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island...

  • the 80% confidence interval is less than the 95 and 99% confidence intervals as the confidence...

    the 80% confidence interval is less than the 95 and 99% confidence intervals as the confidence level increases confidence interval widens

  • Listed below is the median household income for the 50 states and the District of Columbia....

    Listed below is the median household income for the 50 states and the District of Columbia. State, Amount Alabama 42278 Alaska 67629 Arizona 49254 Arkansas 44922 California 60487 Colorado 60940 Connecticut 70161 Delaware 57522 DC 68277 Florida 46140 Georgia 49555 Hawaii 71223 Idaho 53438 Illinois 54916 Indiana 48060 Iowa 57810 Kansas 53444 Kentucky 42786 Louisiana 42406 Maine 51710 Maryland 76165 Massachusetts 63151 Michigan 52005 Minnesota 67244 Mississippi 35521 Missouri 56630 Montana 51102 Nebraska 56870 Nevada 49875 New Hampshire 73397 New...

  • TEST SAMPLE SIZE: 30 TEST TAX RANGE: ? STANDARD DEVIATION: ? MEAN : ? We took...

    TEST SAMPLE SIZE: 30 TEST TAX RANGE: ? STANDARD DEVIATION: ? MEAN : ? We took 15 states with the highest tax rate and 15 state with the lowest tax rate. We are going to set alpha to .1 to determine the covariance with 90% confidence *Please answer the top part and also state whether the test rejects the null or does not reject the null hypothesis. State Lowest Rate State Highest Rate Alaska 6.5% New York 12.7% Wyoming 7.1%...

  • JAVA: File USCapitals.txt is here: Alabama, Montgomery Alaska, Juneau Arizona, Phoenix Arkansas, Little Rock California, Sacramento...

    JAVA: File USCapitals.txt is here: Alabama, Montgomery Alaska, Juneau Arizona, Phoenix Arkansas, Little Rock California, Sacramento Colorado, Denver Connecticut, Hartford Delaware, Dover Florida, Tallahassee Georgia, Atlanta Hawaii, Honolulu Idaho, Boise Illinois, Springfield Indiana, Indianapolis Iowa, Des Moines Kansas, Topeka Kentucky, Frankfort Louisiana, Baton Rouge Maine, Augusta Maryland, Annapolis Massachusettes, Boston Michigan, Lansing Minnesota, Saint Paul Mississippi, Jackson Missouri, Jefferson City Montana, Helena Nebraska, Lincoln Nevada, Carson City New Hampshire, Concord New Jersey, Trenton New York, Albany New Mexico, Santa Fe...

  • For the data below** a. Make a scatterplot, where y=mortality and x= latitude. b. Find the...

    For the data below** a. Make a scatterplot, where y=mortality and x= latitude. b. Find the least-squares line relating mortality (y) to latitude (x). c. Plot the least-squares line on the graph from part a. d. Is the slope positive or negative? Comment on what this means. Latitude Mortality 33.0 34.5 state 1. Alabama 2. Arizona 3. Arkansas 4. California 5. Colorado 6. Connecticut . DeLaware 8. Florida 9. Georgia 10. Idaho 11. Illinois 12. Indiana 13. Iowa 14. Kansas...

  • The accompanying table shows the average price for a gallon of gas for the 50 states...

    The accompanying table shows the average price for a gallon of gas for the 50 states during April 2012. State Price per Gallon Alaska 4.36 Alabama 3.79 Arkansas 3.76 Arizona 3.87 California 4.22 Colorado 3.89 Connecticut 4.17 Delaware 3.89 Florida 3.94 Georgia 3.83 Hawaii 4.61 Iowa 3.75 Idaho 3.77 Illinois 4.06 Indiana 3.95 Kansas 3.71 Kentucky 3.92 Louisiana 3.80 Massachusetts 3.91 Maryland 3.96 Maine 4.00 Michigan 3.93 Minnesota 3.72 Missouri 3.67 Mississippi 3.78 Montana 3.77 North Carolina 3.89 North Dakota...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT