Introduction to hypothesis testing & Pearson’s chi-squared test for independence. Level of significance alpha, p-value, test statistic

Question 1

Confidence interval

Answer 1

an interval around the mean of a sample that one can state with a known probability contains the mean of the population.

Question 2

an interval around the mean of a sample that one can state with a known probability contains the mean of the population….

Answer 2

Confidence interval

Question 3

p value

Answer 3

Assume H0 is true but need to compare it with significance level to accept/fail to reject H0 and to reject/fail to accept H1.

Question 4

The p value is the probability that H0 is true. True or false?

Answer 4

False.

The p value is the probability of accepting H0 when it is correct.

Question 5

The p value is the probability that H1 is true. True or false?

Answer 5

False.

The p value is the probability of accepting H0 when it is correct.

Question 6

The p value is the probability that H0 is false. True or false?

Answer 6

False.

The p value is the probability of accepting H0 when it is correct.