The data show the number of hours of television watched per day by a sample of...
The data show the number of hours of television watched per day by a sample of
28 people. Use technology to answer parts (a) and (b) below.
|
55 |
99 |
77 |
00 |
11 |
00 |
66 |
77 |
44 |
|
00 |
99 |
33 |
55 |
44 |
22 |
55 |
77 |
00 |
|
00 |
77 |
88 |
33 |
88 |
00 |
22 |
88 |
88 |
|
00 |
||||||||
a. Find the data set's first, second, and third quartiles.
|
Upper Q 1Q1 |
equals= |
nothing |
|
Upper Q 2Q2 |
equals= |
nothing |
|
Upper Q 3Q3 |
equals= |
nothing |
(Type integers or decimals. Do not round.)
b. Draw a box-and-whisker plot that represents the data set. Choose the answer below. Note that different technologies will produce slightly different results.
Homework Answers
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The data show the number of hours of television watched per day
by a sample of...
a. Obtain and interpret the quartiles.
a. Obtain and interpret the quartiles.Determine the quartiles.Upper Q 1Q1equals=nothingUpper Q 2Q2equals=nothingUpper Q 3Q3equals=nothing(Type integers or decimals. Do not round.)Interpret the quartiles. Choose the correct answer below.A.The quartiles suggest that all of the sharks bear a number of pups betweenUpper Q 1Q1andUpper Q 3Q3.B.The quartiles suggest that 25% of the sharks bear a number of pups less thanUpper Q 1Q1,25% bear a number of pups betweenUpper Q 1Q1andUpper Q 2Q2,25% bear a number of pups betweenUpper Q 2Q2andUpper Q 3Q3,and...
Instead of considering a data value to be an outlier if it is "very far away...
Instead of considering a data value to be an outlier if it is "very far away from almost all of the other data values," consider an outlier to be a value that is above Upper Q 3Q3 by an amount greater than 1.5times×IQR or below Upper Q 1Q1 by an amount greater than 1.5times×IQR. Use the data set given below to find (a) the 5-number summary, (b) the interquartile range (IQR), and (c) any outliers. 33 44 55 66 77...
Suppose a study reported that the average person watched 5.39 hours of television per day. A...
Suppose a study reported that the average person watched 5.39 hours of television per day. A random sample of 15 people gave the number of hours of television watched per day shown. At the 11% significance level, do the data provide sufficient evidence to conclude that the amount of television watched per day last year by the average person differed from the value reported in the study? (Note: x overbarxequals=3.933 hours and sequals=1.645 hours.) 1.9 6.3 2.0 4.1 3.4 5.6...
A group of researchers from the University of California, Los Angeles (UCLA) collected data on two...
A group of researchers from the University of California, Los Angeles (UCLA) collected data on two different types of ants chosen for their foraging strategies, thatch and seed‑harvester. Four back‑to‑back stem‑and‑leaf plots are provided that compare the weight in milligrams (mg) of the amount of food that each ant was recorded carrying. Each stem‑and‑leaf plot represents a different size classification of the ants. Match the statements that accurately compare the back‑to‑back stem‑and‑leaf plots of the two types of ants. Small...
Mark Gershon, owner of a musical instrument distributorship, thinks that demand for guitars may be related...
Mark Gershon, owner of a musical instrument distributorship, thinks that demand for guitars may be related to the number of television appearances by the popular group Maroon 5 during the previous month. Gershon has collected the data shown in the following table: Maroon 5 TV Appearances 33 55 77 55 77 55 Demand for Guitars 44 66 88 66 1111 66 This exercise contains only parts b, c, and d. b) Using the least-squares regression method, the equation for...
Add a method called median() to the ArrayIns class in the insertSort.java program (Listing 3.3). This...
Add a method called median() to the ArrayIns class in the insertSort.java program (Listing 3.3). This method should return the median value in the array. (Recall that in a group of numbers half are larger than the median and half are smaller.) Do it the easy way. LISTING 3.3 The insertSort.java Program // insertSort.java // demonstrates insertion sort // to run this program: C>java InsertSortApp //-------------------------------------------------------------- class ArrayIns { private long[] a; // ref to array a private int nElems;...
Another simple sort is the odd-even sort. The idea is to repeatedly make two passes through the a...
Another simple sort is the odd-even sort. The idea is to repeatedly make two passes through the array. On the first pass you look at all the pairs of items, a[j] and a[j+1], where j is odd (j = 1, 3, 5, …). If their key values are out of order, you swap them. On the second pass you do the same for all the even values (j = 2, 4, 6, …). You do these two passes repeatedly until...
Listed below are the numbers of hurricanes that occurred in each year in a certain region....
Listed below are the numbers of hurricanes that occurred in each year in a certain region. The data are listed in order by year. Find the range, variance, and standard deviation for the given sample data. Include appropriate units in the results. What important feature of the data is not revealed by any of the measures of variation? 22 66 1414 44 55 88 44 1919 1515 99 11 99 1717 77 The range of the sample data is .hurricanes....
Please show how you did this in excel. :13-19 Every home football game for the past...
Please show how you did this in excel.
:13-19 Every home football game for the past eight years at Eastern State University has been sold out. The revenues from ticket sales are significant, but the sale of food, beverages, and souvenirs has contrib- uted greatly to the overall profitability of the football program. One particular souvenir is the football pro- gram for each game. The number of programs sold at each game is described by the following probabil- ity distribution:...
For the data set shown below, complete parts (a) through (d) below. x 33 44 55...
For the data set shown below, complete parts (a) through (d)
below.
x
33
44
55
77
88
y
44
66
77
1313
1515
(a) Find the estimates of
beta 0β0
and
beta 1β1.
beta 0β0almost equals≈b 0b0equals= -3.244
(Round to three decimal places as needed.)
beta 1β1almost equals≈b 1b1equals=2.267
(Round to three decimal places as needed.)
(b) Compute the standard error, the point estimate for
sigmaσ.
s Subscript eseequals=nothing
(Round to four decimal places as needed.)
b) Compute the...
Please show how you did this in excel.
:13-19 Every home football game for the past eight years at Eastern State University has been sold out. The revenues from ticket sales are significant, but the sale of food, beverages, and souvenirs has contrib- uted greatly to the overall profitability of the football program. One particular souvenir is the football pro- gram for each game. The number of programs sold at each game is described by the following probabil- ity distribution:...
For the data set shown below, complete parts (a) through (d)
below.
x
33
44
55
77
88
y
44
66
77
1313
1515
(a) Find the estimates of
beta 0β0
and
beta 1β1.
beta 0β0almost equals≈b 0b0equals= -3.244
(Round to three decimal places as needed.)
beta 1β1almost equals≈b 1b1equals=2.267
(Round to three decimal places as needed.)
(b) Compute the standard error, the point estimate for
sigmaσ.
s Subscript eseequals=nothing
(Round to four decimal places as needed.)
b) Compute the...
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