Statistics for Management and Economics (Book Only)
11th Edition
ISBN: 9781337296946
Author: Gerald Keller
Publisher: Cengage Learning
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Question
Chapter 1, Problem 8CE
To determine
Sample statistics
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A random sample of 1-gallon cartons of milk is selected from the automatic filling machine. The contents are precisely measured. The measurements are shown to the right. The measurements are in ounces (1 gallon = 128 oz.)
127.46
129.83
129.51
129.75
128.45
127.34
129.18
127.29
127.28
128.46
127.7
130.87
128.04
125.76
127.77
126.72
127.58
128.5
127.37
128.08
127.51
127.66
129.78
128.42
126.35
126.34
128.53
128.48
15
The sum of the fill of the sample containers is,
a
3586.01
b
3481.56
c
3380.16
d
3281.71
How does the speed of a runner vary over the course of a marathon (a distance of 42.195 km)? Consider determining both the time to run the first 5 km and the time to run between the 35-km and 40-km points, and then subtracting the former time from the latter time. A positive value of this difference corresponds to a runner slowing down toward the end of the race. The accompanying histogram is based on times of runners who participated in several different Japanese marathons (“Factors AffectingRunners' Marathon Performance,” Chance, Fall, 1993: 24-30).
What are some interesting features of this histogram? What is a typical difference value? Roughly what proportion of the runners ran the late distance more quickly than the early distance?
Histogram for Exercise 22
A random sample of 1-gallon cartons of milk is selected from the automatic filling machine. The contents are precisely measured. The measurements are shown to the right. The measurements are in ounces (1 gallon = 128 oz.)
127.46
129.83
129.51
129.75
128.45
127.34
129.18
127.29
127.28
128.46
127.7
130.87
128.04
125.76
127.77
126.72
127.58
128.5
127.37
128.08
127.51
127.66
129.78
128.42
126.35
126.34
128.53
128.48
16
The mean fill of the sample of containers is,
a
131.95
b
130.65
c
129.35
d
128.07
Chapter 1 Solutions
Statistics for Management and Economics (Book Only)
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- Note: the answer should be typed. And Answer with 100% accuracy.arrow_forwardShow calculation with correct answerarrow_forwardJack is a discus thrower and hopes to make it to the Olympics some day. He has researched the distance (in meters) of each men's gold medal discus throw from the Olympics from 1920 to 1964. Below is the equation of the line of best fit Jack found. y=0.34x+44.63y=0.34x+44.63 When calculating his line of best fit, Jack let x represent the number of years since 1920 (so x=0 represents 1920 and x=4 represents 1924). Using the line of best fit, estimate the distance Jack should be able to throw in order to be able to win the 2020 Olympics.arrow_forward
- True or False? A dot plot always reveals the exact data range, whether the sample size is large or small.arrow_forwardI have a question regarding the last graph that you did. I cannot shift the SRAS like you did. Check the two ScreenShots that I attached. Which one will be correct one ?arrow_forwardNeeds Complete typed solution with 100 % accuracy.arrow_forward
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