Mind on Statistics
5th Edition
ISBN: 9781285463186
Author: Jessica M. Utts, Robert F. Heckard
Publisher: Brooks Cole
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Chapter 4, Problem 4.63E
To determine
(a)
To find:
The percentage with a tattoo for ear piercing category and check whether is there any relationship between two variables.
To determine
(b)
To discuss:
Draw a bar graph of the column percentages and show the relationship between who have a tattoo and number of ear piercings.
To determine
(c)
To discuss:
Calculate the percentage with at least five ear piercings for women who have tattoo and don't have the tattoo.
To determine
(d)
To discuss:
Find the percentage of the total sample has a tattoo.
To determine
(e)
To discuss:
Find the percentage of the total has two or fewer ear piercings who don't have a tattoo.
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To evaluate the success of a 1-year experimental program designed to increase the mathematical achievement of underprivileged high school seniors, a random sample of participants in the program will be selected and their mathematics scores will be compared with the previous year’s statewide average of 525 for underprivileged seniors. The researchers want to determine whether the experimental program has increased the mean achievement level over the previous year’s statewide average. If alpha=.05, what sample size is needed to have a probability of Type II error of at most .025 if the actual mean is increased to 550? From previous results, sigma=80.
Chapter 4 Solutions
Mind on Statistics
Ch. 4 - Prob. 4.1ECh. 4 - Prob. 4.2ECh. 4 - Each fall, auditions for the band and orchestra...Ch. 4 - Prob. 4.4ECh. 4 - For each pair of variables, indicate whether or...Ch. 4 - For each pair of variables, indicate whether or...Ch. 4 - Suppose a study on the relationship between gender...Ch. 4 - Prob. 4.8ECh. 4 - Prob. 4.9ECh. 4 - Do grumpy old men have a greater risk of having...
Ch. 4 - Prob. 4.11ECh. 4 - Prob. 4.12ECh. 4 - Prob. 4.13ECh. 4 - Prob. 4.14ECh. 4 - Prob. 4.15ECh. 4 - Prob. 4.16ECh. 4 - For Exercise 4.17 and 4.18: A study is done to...Ch. 4 - For Exercise 4.17 and 4.18: A study is done to...Ch. 4 - Prob. 4.19ECh. 4 - a. For a relative risk of 2.1, what is the percent...Ch. 4 - a. For a relative risk of 1.53, what is the...Ch. 4 - Science News (February 25, 1995, p. 124) reported...Ch. 4 - Prob. 4.23ECh. 4 - Prob. 4.24ECh. 4 - Exercise 4.10 described a study in which men were...Ch. 4 - Prob. 4.26ECh. 4 - Prob. 4.27ECh. 4 - Suppose a newspaper article states that drinking...Ch. 4 - Prob. 4.29ECh. 4 - Prob. 4.30ECh. 4 - Prob. 4.31ECh. 4 - Case Study 1.5 (p. 4) was called Does Prayer Lower...Ch. 4 - Prob. 4.33ECh. 4 - Prob. 4.34ECh. 4 - Prob. 4.35ECh. 4 - Prob. 4.36ECh. 4 - Prob. 4.37ECh. 4 - Prob. 4.38ECh. 4 - Prob. 4.39ECh. 4 - Researchers studied a random sample of North...Ch. 4 - Refer to Exercise 4.40. a. Write a two-way table...Ch. 4 - In a national survey, n=1000 randomly selected...Ch. 4 - Prob. 4.43ECh. 4 - Prob. 4.44ECh. 4 - Prob. 4.45ECh. 4 - Prob. 4.46ECh. 4 - Prob. 4.47ECh. 4 - Prob. 4.48ECh. 4 - Prob. 4.49ECh. 4 - Prob. 4.50ECh. 4 - Prob. 4.51ECh. 4 - Prob. 4.52ECh. 4 - Refer to the Minitab output for Exercise 4.52. The...Ch. 4 - Prob. 4.54ECh. 4 - Prob. 4.55ECh. 4 - Prob. 4.56ECh. 4 - Prob. 4.57ECh. 4 - Prob. 4.58ECh. 4 - Exercise 4.2 (p.136) gave the following data from...Ch. 4 - In Example 4.15 (p. 130), a statistically...Ch. 4 - Prob. 4.61ECh. 4 - Prob. 4.62ECh. 4 - Prob. 4.63ECh. 4 - Prob. 4.64ECh. 4 - Prob. 4.65ECh. 4 - Prob. 4.66ECh. 4 - Prob. 4.67ECh. 4 - Prob. 4.68ECh. 4 - Prob. 4.69ECh. 4 - Prob. 4.70ECh. 4 - Prob. 4.71ECh. 4 - Prob. 4.72ECh. 4 - Prob. 4.73ECh. 4 - Prob. 4.74ECh. 4 - Prob. 4.75ECh. 4 - Prob. 4.76ECh. 4 - Prob. 4.77ECh. 4 - Prob. 4.78ECh. 4 - Prob. 4.79ECh. 4 - Prob. 4.80ECh. 4 - Prob. 4.81ECh. 4 - Prob. 4.82ECh. 4 - Prob. 4.83ECh. 4 - Prob. 4.84E
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