Question

10. The p-value is: A. The chance, when the null hypothesis is true, of obtaining a statistic as extreme as (or more extreme than) the observed statistic. B. The chance that the alternative hypothesis is true. C. The chance that the null hypothesis is true. D. The chance, when the alternative hypothesis is true, of obtaining a statistic as extreme as (or more extreme than) the observed statistic. 11. A study suggests that exposure to UV rays through the car window may increase the risk of skin cancer. The study reviewed the records of all 1050 skin cancer patients referred to the St. Louis University Cancer Center in 2004. The researchers wanted to see if the left side of a person's body was more likely to develop skin cancer. Let p denote the percentage of skin cancer patients with first development on the left side of the body. The hypotheses are: H0: p = 0.5 HA: p < 0.5. Which of the following confidence intervals would suggest we should reject the null hypothesis and has the strongest evidence in favor of the alternative? A. (0.8, 0.9) B. (0.4, 0.6) C. (0.1, 0.2) D. (0.6, 0.7) 12. What is assumed to be true in a significance test? A. The null hypothesis B. The alternative hypothesis C. The p-value D. The test statistic 13. Suppose we want to know: In the 2020 presidential election, will the percentage of eligible U.S. voters who vote differ from 55%? Which of the following is the appropriate alternative hypothesis? A. : p = 0.55 B. : p < 0.55 C. p > 0.55 D. : p ≠ 0.55 14. What is the appropriate symbol for a mean calculated from sample data and a mean calculated from population data respectively? A. x̄ and µ B. µ and x̄ C. p̂ and p D. p and p̂ 15. What is the appropriate symbol for a proportion calculated from sample data and proportion calculated from population data respectively? A. x̄ and µ B. µ and x̄ C. p̂ and p D. p and p̂

10. The p-value is:
A. The chance, when the null hypothesis is true, of obtaining a statistic as extreme as (or more extreme than) the observed statistic.
B. The chance that the alternative hypothesis is true.
C. The chance that the null hypothesis is true.
D. The chance, when the alternative hypothesis is true, of obtaining a statistic as extreme as (or more extreme than) the observed statistic.

11. A study suggests that exposure to UV rays through the car window may increase the risk of skin cancer. The study reviewed the records of all 1050 skin cancer patients referred to the St. Louis University Cancer Center in 2004. The researchers wanted to see if the left side of a person's body was more likely to develop skin cancer. Let p denote the percentage of skin cancer patients with first development on the left side of the body. The hypotheses are:
H0: p = 0.5
HA: p < 0.5.
Which of the following confidence intervals would suggest we should reject the null hypothesis and has the strongest evidence in favor of the alternative?
A. (0.8, 0.9)
B. (0.4, 0.6)
C. (0.1, 0.2)
D. (0.6, 0.7)

12. What is assumed to be true in a significance test?
A. The null hypothesis
B. The alternative hypothesis
C. The p-value
D. The test statistic

13. Suppose we want to know: In the 2020 presidential election, will the percentage of eligible U.S. voters who vote differ from 55%? Which of the following is the appropriate alternative hypothesis?
A. : p = 0.55
B. : p < 0.55
C. p > 0.55
D. : p ≠ 0.55

14. What is the appropriate symbol for a mean calculated from sample data and a mean calculated from population data respectively?
A. x̄ and µ
B. µ and x̄
C. p̂ and p
D. p and p̂

15. What is the appropriate symbol for a proportion calculated from sample data and proportion calculated from population data respectively?
A. x̄ and µ
B. µ and x̄
C. p̂ and p
D. p and p̂

Added by Douglas M.

Question

Please give Ace some feedback