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1. You apply to 30 graduate programs 10 of which are in clinical psychology, 5 of which are in counseling psychology, and 5 of which are in social psychology. You get a message from home that you have a letter from one of the programs you applied to, but nothing is said about which one. Give the probabilities:
a. A clinical psychology program
b. A counseling psychology program
c. From any program that is NOT social psychology
d. From a social psychology OR a clinical psychology program
2. You are a consumer psychologist interested in holiday spending. A national census reports that the American family spent an average of u = 101$ for Halloween candy and costumes last year. A sample of n families this year produced a mean of xbar = 115$ with s =20 .
a. state your null and alternative hypothesis
b. calculate the two-tailed t-test single sample
c. what do you conclude?
Would the resulting sets of data represent dependent or independent samples? Why? What could the students change in the project to have it represent the other?
Assuming the population variances from both offices are equal, is there evidence of a difference in the mean waiting time between the two offices? Use α = 0.05
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The Pew Research Center’s Social & Demographic Trends project found that 46% of U.S. adults would rather live in a different type of community than the one where they are living now (Pew Research Center, January 29, 2009). The national survey of 2260..
In summer 2000, a growing number of warranty claims on Firestone tires sold on Ford SUVs prompted Firestone and Ford to issue a major recall. An analysis of warranty-claims data helped identify which models to recall.
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