Introduction to Statistics and Data Analysis
5th Edition
ISBN: 9781305445963
Author: PECK
Publisher: Cengage
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Chapter 12.2, Problem 18E
To determine
Check whether there is any evidence that the spirituality category proportions are not the same for natural and social scientists at 0.01 significance level.
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Does support for assisted suicide (“death with dignity”) vary by social class? Is this relationship dif-ferent in different nations? Small samples in three nations were asked whether it is ever justified for a per-son with an incurable disease to take his or her own life. Respondents answered in terms of a 10-point scale, on which 10 was “always justified” (the strongest support for “death with dignity”) and 1 was “never justified” (the lowest level of support). Results are reported here.
A recent study randomly selected women from various countries around the world and collected information about diet and health. The women who at a Paleo diet had lower rates of Osteoporosis when compared to the other women in the study.
A. Which is the explanatory variable and why.
B. Which is the response variable and why.
C. Write a conclusion appropriate for this type of study that describes the relationship between the explanatory and response variables.
The accompanying data on degree of spirituality for a sample of natural scientists and a sample of social scientists working at research universities appeared in a paper. Assume that it is reasonable to regard these two samples as representative of natural and social scientists at
research universities. Is there evidence that the spirituality category proportions are not the same for natural and social scientists? Test the relevant hypotheses using a significance level of 0.01.
Natural Scientists
Social Scientists
Very
56
58
Degree of Spirituality
Moderate Slightly Not at All
214
237
157
219
196
241
State the null and alternative hypotheses.
O Ho: The spirituality category for natural scientists and social scientists are not independent.
H₂: The spirituality category for natural scientists and social scientists are independent.
O Ho: The spirituality category proportions are not all the same for natural scientists and social scientists.
H₂: The spirituality category proportions are the…
Chapter 12 Solutions
Introduction to Statistics and Data Analysis
Ch. 12.1 - A particular cell phone case is available in a...Ch. 12.1 - From the given information in each case below, use...Ch. 12.1 - Prob. 3ECh. 12.1 - The article “In Bronx, Hitting Home Runs Is A...Ch. 12.1 - Prob. 5ECh. 12.1 - The paper Sociochemosensory and Emotional...Ch. 12.1 - Prob. 7ECh. 12.1 - Prob. 8ECh. 12.1 - The report “Fatality Facts 2004: Bicycles”...Ch. 12.1 - Prob. 10E
Ch. 12.1 - Prob. 11ECh. 12.1 - A certain genetic characteristic of a particulai...Ch. 12.1 - Prob. 13ECh. 12.2 - A particular state university system has six...Ch. 12.2 - A random sample of 1000 registered voters in a...Ch. 12.2 - Prob. 16ECh. 12.2 - Prob. 17ECh. 12.2 - Prob. 18ECh. 12.2 - Prob. 19ECh. 12.2 - Prob. 20ECh. 12.2 - Prob. 21ECh. 12.2 - Prob. 22ECh. 12.2 - Prob. 23ECh. 12.2 - Prob. 24ECh. 12.2 - Prob. 25ECh. 12.2 - Prob. 26ECh. 12.2 - Prob. 27ECh. 12.2 - Prob. 28ECh. 12.3 - Prob. 29ECh. 12.3 - Prob. 30ECh. 12.3 - Can people tell the difference between a female...Ch. 12.3 - The following passage is from the paper Gender...Ch. 12.3 - The article titled Nap Time...Ch. 12.3 - Using data from a national survey, the authors of...Ch. 12 - Each observation in a random sample of 100 bicycle...Ch. 12 - The color vision of birds plays a role in their...Ch. 12 - Prob. 37CRCh. 12 - Prob. 38CRCh. 12 - Prob. 39CRCh. 12 - Prob. 40CRCh. 12 - Prob. 41CRCh. 12 - Prob. 42CRCh. 12 - Prob. 43CRCh. 12 - Prob. 44CR
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- List the sample space of each experiment. Tossing three coinsarrow_forward2. Is there a difference in the proportion of individuals with food allergiesbetween young children and adults? A survey finds that 62 among a simplerandom sample of 350 young children have some food allergy, comparedwith 26 out of 250 adults. e. Based on a 5% significance level, what conclusion should be made?arrow_forward“Are Women Really More Talkative Than Men?” is the title of an article that appeared in the journal Science. In the article, Mehl, Vazire, Ramirez-Esparza, Slatcher, & Pennebaker (2007) report the results of a study of 396 men and women. Each participant wore a microphone that recorded every word he or she uttered. The researchers counted the number of words uttered by men and women and compared them. The data below are fictional but they re-create the pattern that Mehl and colleagues observed: Men: 16,345 17,222 15,646 14,889 16,701 Women: 17,345 15,593 16,624 16,696 14,200 Conduct steps for hypothesis testing. Calculate the 95% confidence interval. (MX - MY)lower = -1481.575 (MX - MY)upper = 1343.575arrow_forward
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