According to the Entertainment Software Association, the average age of gamers (those that routinely play video games) is 30 years old. A random sample of 33 gamers people had an average age of 32.7 years old.
Assume that the population standard deviation for the age of gamers is 4.6 years. Use a 90 confidence interval to test the validity of this report and choose the one statement that is correct.A) Because this confidence interval does not include 30 years, the report by the Entertainment Software Association is not validated.
B) Because this confidence interval does not include 30 years, the report by the Entertainment Software Association is validated.
C) Because this confidence interval does include 30 years, the report by the Entertainment Software Association is validated.
D) Because this confidence interval does include 30 years, the report by the Entertainment Software Association is not validated.
Question 2
If the null hypothesis for the Wilcoxon rank-sum testis not true, the distributions for the two populations are different from one another which should result in the rank-sum of one sample being relatively smaller than the other.
Indicate whether the statement is true or false
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