Understanding Basic Statistics 6th Edition by Charles Henry Brase,Corrinne Pellillo Brase

تمرين 73

Please provide the following information for Problems 7-12:
(a) What is the level of significance State the null and alternate hypotheses.
(b) Check Requirements What sampling distribution will you use What assumptions are you making Compute the sample test statistic.
(c) Find (or estimate) the P -value. Sketch the sampling distribution and show the area corresponding to the P -value.
(d) Based on your answers in parts (a)-(c), will you reject or fail to reject the null hypothesis Are the data statistically significant at level
(e) Interpret your conclusion in the context of the application.
Note: Answers may vary due to rounding.
Extraterrestrials: Believe It Based on information from Harper's Index , r 1 = 37 out of a random sample of n 1 = 100 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of n 2 = 100 adult Americans who did attend college, r 2 = 47 claim that they believe in extraterrestrials. Does this indicate that the proportion of people who attended college and who believe in extraterrestrial is higher than the proportion who did not attend college Use = 0.01.