EP INTRODUCTION TO PROBABILITY+STAT.
14th Edition
ISBN: 2810019974203
Author: Mendenhall
Publisher: CENGAGE L
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Textbook Question
Chapter 2.7, Problem 2.43E
Given the following data set: .23, .30, .35, .41, .56, .58, .76, .80
a. Find the lower and tipper
b. Calculate the IQR.
c. Calculate the lower and tipper fences. Are there any outliers?
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9.2 Testing the Mean mu:
Problem 3
(1 point)
Test the claim that the population of sophomore college
students has a mean grade point average greater than 2.2.
Sample statistics include n = 71, x = 2.44, and s = 0.9.
Use a significance level of a = 0.01.
The test statistic is
The P-Value is between :
The final conclusion is
< P-value <
A. There is sufficient evidence to support the claim that
the mean grade point average is greater than 2.2.
○ B. There is not sufficient evidence to support the claim
that the mean grade point average is greater than 2.2.
Note: You can earn partial credit on this problem.
Note: You are in the Reduced Scoring Period. All work counts for
50% of the original.
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Chapter 2 Solutions
EP INTRODUCTION TO PROBABILITY+STAT.
Ch. 2.2 - You are given n=5 measurements: 0, 5, 1, 1,3. Draw...Ch. 2.2 - Prob. 2.2ECh. 2.2 - Prob. 2.3ECh. 2.2 - Auto Insurance The cost of automobile insurance...Ch. 2.2 - Prob. 2.5ECh. 2.2 - Prob. 2.6ECh. 2.2 - Prob. 2.7ECh. 2.2 - Prob. 2.8ECh. 2.2 - Prob. 2.9ECh. 2.2 - Prob. 2.10E
Ch. 2.2 - Prob. 2.11ECh. 2.2 - Prob. 2.12ECh. 2.3 - You are given n=5 measurements: 2, 1, 1,3,5. a....Ch. 2.3 - Prob. 2.14ECh. 2.3 - Prob. 2.15ECh. 2.3 - Prob. 2.16ECh. 2.3 - Prob. 2.17ECh. 2.3 - Utility Bills in Southern CaliforniaThe monthly...Ch. 2.5 - Prob. 2.19ECh. 2.5 - Prob. 2.20ECh. 2.5 - A distribution of measurements is relatively...Ch. 2.5 - Prob. 2.22ECh. 2.5 - Prob. 2.23ECh. 2.5 - Packaging Hamburger Meat The data listed here are...Ch. 2.5 - Breathing Rates Is your breathing rate normal?...Ch. 2.5 - Prob. 2.26ECh. 2.5 - Social Security Numbers A group of70 students were...Ch. 2.5 - Prob. 2.28ECh. 2.5 - Prob. 2.29ECh. 2.5 - Prob. 2.30ECh. 2.5 - Timber Tracts To estimate the amount of lumber in...Ch. 2.5 - Prob. 2.32ECh. 2.5 - Prob. 2.33ECh. 2.5 - Prob. 2.34ECh. 2.5 - Prob. 2.35ECh. 2.5 - Prob. 2.36ECh. 2.5 - Prob. 2.37ECh. 2.5 - Prob. 2.38ECh. 2.5 - Prob. 2.39ECh. 2.7 - Prob. 2.40ECh. 2.7 - Find the five-number summary and the IQR forthese...Ch. 2.7 - Given the following data set: 2.3, 1.0, 2.1, 6.5,...Ch. 2.7 - Given the following data set: .23, .30, .35, .41,...Ch. 2.7 - Construct a box plot for these data and...Ch. 2.7 - Construct a box plot for these data and...Ch. 2.7 - If you scored at the 69th percentile on a...Ch. 2.7 - Mercury Concentration in DolphinsEnvironmental...Ch. 2.7 - Hamburger Meat The weights (in pounds) of the 27...Ch. 2.7 - Comparing NFL Quarterbacks How does Aaron Rodgers,...Ch. 2.7 - Presidential Vetoes The set of presidential vetoes...Ch. 2.7 - Survival Times Altman and Bland report the...Ch. 2.7 - Utility Bills in Southern California, again The...Ch. 2.7 - What’s Normal? again Refer to Exercise1.67 and...Ch. 2 - Raisins The number of raisins in each of...Ch. 2 - Prob. 2.55SECh. 2 - Prob. 2.56SECh. 2 - A Recurring IIIness Refer to Exercise 1.26 and...Ch. 2 - Prob. 2.58SECh. 2 - Prob. 2.59SECh. 2 - Tuna Fish, again Refer to Exercise 2.8. Theprices...Ch. 2 - Prob. 2.61SECh. 2 - Chloroform According to the EPA, Chloroform, which...Ch. 2 - Prob. 2.63SECh. 2 - Sleep and the College Student How muchsleep do you...Ch. 2 - Prob. 2.65SECh. 2 - Prob. 2.66SECh. 2 - Polluted Seawater Petroleum pollution in seasand...Ch. 2 - Prob. 2.68SECh. 2 - Prob. 2.69SECh. 2 - Prob. 2.70SECh. 2 - Prob. 2.71SECh. 2 - Prob. 2.72SECh. 2 - Prob. 2.73SECh. 2 - Prob. 2.74SECh. 2 - TV Commercials The mean duration oftelevision...Ch. 2 - Prob. 2.76SECh. 2 - Prob. 2.77SECh. 2 - Prob. 2.78SECh. 2 - Prob. 2.79SECh. 2 - Prob. 2.80SECh. 2 - Prob. 2.81SECh. 2 - Prob. 2.82SECh. 2 - Prob. 2.83SECh. 2 - Prob. 2.84SECh. 2 - Prob. 2.85SE
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