Statistics, Binder Ready Version: Unlocking the Power of Data
2nd Edition
ISBN: 9781119163664
Author: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock
Publisher: WILEY
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Chapter 3.1, Problem 9E
To determine
Obtain the correct notation for the quantity and provide its value.
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1. A consumer group claims that the mean annual consumption of cheddar cheese by a person in
the United States is at most 10.3 pounds. A random sample of 100 people in the United States has
a mean annual cheddar cheese consumption of 9.9 pounds. Assume the population standard
deviation is 2.1 pounds. At a = 0.05, can you reject the claim? (Adapted from U.S. Department of
Agriculture)
State the hypotheses:
Calculate the test statistic:
Calculate the P-value:
Conclusion (reject or fail to reject Ho):
2. The CEO of a manufacturing facility claims that the mean workday of the company's assembly
line employees is less than 8.5 hours. A random sample of 25 of the company's assembly line
employees has a mean workday of 8.2 hours. Assume the population standard deviation is 0.5
hour and the population is normally distributed. At a = 0.01, test the CEO's claim.
State the hypotheses:
Calculate the test statistic:
Calculate the P-value:
Conclusion (reject or fail to reject Ho):
Statistics
21.
find the mean.
and
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Chapter 3 Solutions
Statistics, Binder Ready Version: Unlocking the Power of Data
Ch. 3.1 - In Exercises 3.1 to 3.5, state whether the...Ch. 3.1 - Prob. 2ECh. 3.1 - In Exercises 3.1 to 3.5, state whether the...Ch. 3.1 - In Exercises 3.1 to 3.5, state whether the...Ch. 3.1 - Prob. 5ECh. 3.1 - Prob. 6ECh. 3.1 - Prob. 7ECh. 3.1 - Prob. 8ECh. 3.1 - Prob. 9ECh. 3.1 - Prob. 10E
Ch. 3.1 - Prob. 11ECh. 3.1 - Prob. 12ECh. 3.1 - Prob. 13ECh. 3.1 - Prob. 14ECh. 3.1 - Prob. 15ECh. 3.1 - Exercises 3.16 to 3.19 refer to the sampling...Ch. 3.1 - Prob. 17ECh. 3.1 - Prob. 18ECh. 3.1 - Prob. 19ECh. 3.1 - Downloading Apps for Your Smartphone A random...Ch. 3.1 - How Many Apps for Your Smartphone? Exercise 3.20...Ch. 3.1 - Socially Conscious Consumers In March 2015, a...Ch. 3.1 - Florida Lakes Florida has over 7700 lakes.12 We...Ch. 3.1 - Topical Painkiller Ointment The use of topical...Ch. 3.1 - Average Household Size The latest US Census lists...Ch. 3.1 - Proportion of US Residents Less than 25 Years Old...Ch. 3.1 - Mix It Up for Better Learning In preparing for a...Ch. 3.1 - What Proportion of Adults and Teens Text Message?...Ch. 3.1 - Hollywood Movies Data 2.7 on page 95 introduces...Ch. 3.1 - Prob. 30ECh. 3.1 - Prob. 31ECh. 3.1 - Prob. 32ECh. 3.1 - Prob. 33ECh. 3.1 - Prob. 34ECh. 3.1 - What Is an Average Budget for a Hollywood Movie?...Ch. 3.1 - College Graduates In Example 3.1 on page 197, we...Ch. 3.1 - Gender in the Rock and Roll Hall of Fame From its...Ch. 3.1 - Prob. 38ECh. 3.1 - Prob. 39ECh. 3.1 - Prob. 40ECh. 3.2 - In Exercises 3.41 to 3.44, data from a sample is...Ch. 3.2 - In Exercises 3.41 to 3.44, data from a sample is...Ch. 3.2 - In Exercises 3.41 to 3.44, data from a sample is...Ch. 3.2 - In Exercises 3.41 to 3.44, data from a sample is...Ch. 3.2 - Prob. 45ECh. 3.2 - In Exercises 3.45 to 3.48, construct an interval...Ch. 3.2 - Prob. 47ECh. 3.2 - Prob. 48ECh. 3.2 - Prob. 49ECh. 3.2 - Prob. 50ECh. 3.2 - Prob. 51ECh. 3.2 - Prob. 52ECh. 3.2 - Prob. 53ECh. 3.2 - In Exercises 3.51 to 3.56, information about a...Ch. 3.2 - Prob. 55ECh. 3.2 - In Exercises 3.51 to 3.56, information about a...Ch. 3.2 - Prob. 57ECh. 3.2 - Prob. 58ECh. 3.2 - Prob. 59ECh. 3.2 - Prob. 60ECh. 3.2 - Prob. 61ECh. 3.2 - Prob. 62ECh. 3.2 - Prob. 63ECh. 3.2 - Prob. 64ECh. 3.2 - Prob. 65ECh. 3.2 - Prob. 66ECh. 3.2 - Prob. 67ECh. 3.2 - Prob. 68ECh. 3.2 - Prob. 69ECh. 3.2 - Prob. 70ECh. 3.2 - Exercises 3.71 to 3.73 consider the question...Ch. 3.2 - Prob. 72ECh. 3.2 - Prob. 73ECh. 3.2 - Prob. 74ECh. 3.3 - In Exercises 3.75 and 3.76, a sample is given....Ch. 3.3 - Prob. 76ECh. 3.3 - Prob. 77ECh. 3.3 - In Exercises 3.77 to 3.80, use the bootstrap...Ch. 3.3 - Prob. 79ECh. 3.3 - Prob. 80ECh. 3.3 - Prob. 81ECh. 3.3 - Prob. 82ECh. 3.3 - Prob. 83ECh. 3.3 - Prob. 84ECh. 3.3 - Prob. 85ECh. 3.3 - Prob. 86ECh. 3.3 - Prob. 87ECh. 3.3 - Prob. 88ECh. 3.3 - Are Female Rats More Compassionate Than Male Rats?...Ch. 3.3 - Prob. 90ECh. 3.3 - Prob. 91ECh. 3.3 - Prob. 92ECh. 3.3 - Prob. 93ECh. 3.3 - Correlation between Price and Depreciation in...Ch. 3.3 - Prob. 95ECh. 3.3 - Exercises 3.96 to 3.101 use data from a study...Ch. 3.3 - Prob. 97ECh. 3.3 - Prob. 98ECh. 3.3 - Prob. 99ECh. 3.3 - Prob. 100ECh. 3.3 - Prob. 101ECh. 3.3 - Prob. 102ECh. 3.3 - Prob. 103ECh. 3.4 - Prob. 104ECh. 3.4 - Prob. 105ECh. 3.4 - Prob. 106ECh. 3.4 - Prob. 107ECh. 3.4 - Prob. 108ECh. 3.4 - Prob. 109ECh. 3.4 - Prob. 110ECh. 3.4 - Prob. 111ECh. 3.4 - Prob. 112ECh. 3.4 - Prob. 113ECh. 3.4 - Prob. 114ECh. 3.4 - Prob. 115ECh. 3.4 - IQ Scores A sample of 10 IQ scores was used to...Ch. 3.4 - Average Penalty Minutes in the NHL In Exercise...Ch. 3.4 - Prob. 118ECh. 3.4 - Prob. 119ECh. 3.4 - Prob. 120ECh. 3.4 - Prob. 121ECh. 3.4 - Prob. 122ECh. 3.4 - Prob. 123ECh. 3.4 - Prob. 124ECh. 3.4 - Prob. 125ECh. 3.4 - Prob. 126ECh. 3.4 - Prob. 127ECh. 3.4 - Prob. 128ECh. 3.4 - Prob. 129ECh. 3.4 - Prob. 130ECh. 3.4 - Prob. 131ECh. 3.4 - Prob. 132ECh. 3.4 - Prob. 133ECh. 3.4 - Prob. 134ECh. 3.4 - Prob. 135E
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