Homework Answers
Add Answer to:
3. You are in charge of ordering parts for the manufacturing company you work for. You...
2. A friend tells you that it would take you the same amount of time to...
2. A friend tells you that it would take you the same amount of time to ride a bicycle to school as it would be to drive your car due to traffic. You disagree, and wish to prove them wrong using statistics! Your friend claims that it will take you an average of 19 minutes to bike from your house to school. You make a note of how long it takes you to get from your house to school in...
How long does it take to commute from home to work? It depends on several factors,...
How long does it take to commute from home to work? It depends on several factors, including route, traffic, and time of departure. The data below are results (in minutes) from a random sample of eight trips. 27 38 30 42 24 37 30 39 a. What is the sample mean and the sample standard deviation s? (Use Desmos.) Round your answers to the nearest tenth. b. Use these data to create a 95% confidence interval for the population mean time of the commute. Round your final answers...
In a random sample of 8 people, the mean commute time to work was 33.5 minutes...
In a random sample of 8 people, the mean commute time to work was 33.5 minutes and the standard deviation was 7 4 minutes A 90% confidence interval using the t-distribution was calculated to be (28.5,38.5). After researching commute times to work, it was found that the population standard deviation is 9 5 minutes Find the margin of error and construct a 90% confidence interval using the standard normal distribution with the appropriate calculations for a standard deviation that is...
Question 5 (1 point) Suppose you work for a marketing consulting firm and you are tasked...
Question 5 (1 point) Suppose you work for a marketing consulting firm and you are tasked to determine the proportion of Americans who respond positively to an ad your agency is testing for release. A survey is performed and you randomly select 134 respondents. You input your data into a statistical computing package (like Minitab) and you are given a 99% confidence interval of (0.3886 , 0.6114). You need to present these findings next departmental meeting. What is the correct...
2.33 +2.58 96 How long does it take to commute from home to work? It depends...
2.33 +2.58 96 How long does it take to commute from home to work? It depends on several factors, including route, traffic, and time of departure. The data below are results (in minutes) from a random sample of eight trips. 27 38 30 42 24 37 30 39 a.) What are the sample mean X and the sample standard deviation s points each) Hint: Enter the data set in the calculator or use the formulas in Chapter 2 to find...
You are tasked with determining if there is a difference in the average number of years...
You are tasked with determining if there is a difference in the average number of years of education of men and women in California. You take a random sample of 800 men and 3,200 women. The average education in your sample of men is 14 years with a sample standard deviation of 5 years. The average education in your sample of women is 15 years with a sample standard deviation of 10 years. a. What is your null hypothesis? b....
You are interested in finding a 90% confidence interval for the average commute that non- residential...
You are interested in finding a 90% confidence interval for the average commute that non- residential students have to their college. The data below show the number of commute miles for 10 randomly selected non-residential college students. Round answers to 3 decimal places where possible. 9 17 17 22 15 25 7 23 77 a. To compute the confidence interval use a ? distribution. b. With 90% confidence the population mean commute for non-residential college students is between and miles....
You are interested in finding a 98% confidence interval for the average commute that non-residential students...
You are interested in finding a 98% confidence interval for the average commute that non-residential students have to their college. The data below show the number of commute miles for 13 randomly selected non-residential college students. Round answers to 3 decimal places where possible. 13 6 14 20 21 15 15 9 26 8 25 5 10 a. To compute the confidence interval use a ? t z distribution. b. With 98% confidence the population mean commute for non-residential college...
Show all work and calc functions. For each Hypothesis test you need to use the p-value...
Show all work and calc functions. For each Hypothesis
test you need to use the p-value method and your calculator, write
(i) H0, Ha, (ii) Identify the Original Claim
(iv) Identify the Random Variable & Distribution, (v)
Calculator function used with values inputted to find the P-value
(vi) the p-value with ,Decision and Conclusion
5. (8 points) Suppose you work for the Department of Natural Resources and you want to estimate, with 95% confidence, the mean (average) length of all...
Say a study determines that the amount of time that college students on a given campus...
Say a study determines that the amount of time that college students on a given campus workout each week changes from school to school. You randomly interview 60 West State University students. You find that the average weekly gym time is 3 hours and that the standard deviation is 1 hour. i. Is the sample mean normally distributed? Why or why not? ii. Your friend believes that the average gym time at West State is 2.5 hours. Test your friend's...
2. A friend tells you that it would take you the same amount of time to ride a bicycle to school as it would be to drive your car due to traffic. You disagree, and wish to prove them wrong using statistics! Your friend claims that it will take you an average of 19 minutes to bike from your house to school. You make a note of how long it takes you to get from your house to school in...
In a random sample of 8 people, the mean commute time to work was 33.5 minutes and the standard deviation was 7 4 minutes A 90% confidence interval using the t-distribution was calculated to be (28.5,38.5). After researching commute times to work, it was found that the population standard deviation is 9 5 minutes Find the margin of error and construct a 90% confidence interval using the standard normal distribution with the appropriate calculations for a standard deviation that is...
Question 5 (1 point) Suppose you work for a marketing consulting firm and you are tasked to determine the proportion of Americans who respond positively to an ad your agency is testing for release. A survey is performed and you randomly select 134 respondents. You input your data into a statistical computing package (like Minitab) and you are given a 99% confidence interval of (0.3886 , 0.6114). You need to present these findings next departmental meeting. What is the correct...
2.33 +2.58 96 How long does it take to commute from home to work? It depends on several factors, including route, traffic, and time of departure. The data below are results (in minutes) from a random sample of eight trips. 27 38 30 42 24 37 30 39 a.) What are the sample mean X and the sample standard deviation s points each) Hint: Enter the data set in the calculator or use the formulas in Chapter 2 to find...
You are interested in finding a 90% confidence interval for the average commute that non- residential students have to their college. The data below show the number of commute miles for 10 randomly selected non-residential college students. Round answers to 3 decimal places where possible. 9 17 17 22 15 25 7 23 77 a. To compute the confidence interval use a ? distribution. b. With 90% confidence the population mean commute for non-residential college students is between and miles....
Show all work and calc functions. For each Hypothesis
test you need to use the p-value method and your calculator, write
(i) H0, Ha, (ii) Identify the Original Claim
(iv) Identify the Random Variable & Distribution, (v)
Calculator function used with values inputted to find the P-value
(vi) the p-value with ,Decision and Conclusion
5. (8 points) Suppose you work for the Department of Natural Resources and you want to estimate, with 95% confidence, the mean (average) length of all...
Most questions answered within 3 hours.
-
Name two areas of the human body with the highest concentration
of lymph nodes and speculate...
asked 15 seconds ago -
Angel Corporation has $10,000,000 of
8.0% 25 year bonds dated May 1, 2018 with interest payable...
asked 35 minutes ago -
7.
________ involves individuals trading goods they already have or
providing services in exchange for something...
asked 39 minutes ago -
Share your research problem. What databases did you search as
you gathered evidence to support your...
asked 39 minutes ago -
what process occurs to form microspores and megaspores in flowering
plants?
asked 46 minutes ago -
C++
I need to use the function getData to put in all my data using
arrays....
asked 46 minutes ago -
A block is hung by a string from the inside roof of a van. When
the...
asked 52 minutes ago -
Do you think companies should not go for long term debt in their
capital structure to...
asked 1 hour ago -
I create an address book where the user enters the name, phone
and email in the...
asked 1 hour ago -
The production capacity for acrylonitrile
(C3H3N) in the United States exceeds 2
million pounds per year....
asked 1 hour ago -
explain and comment out your answer
43. How many address lines are required to address a...
asked 1 hour ago -
A sample of 45 observations is selected from a normal
population. The sample mean is 49,...
asked 1 hour ago