Introduction to Hypothesis Testing

Question 1

Mike claims that the average price for houses in Chicago is more than $500k. Write down the H1.

Accepted Answer

H1 : μ > $500,000

Question 2

Select the appropriate test. μ = 45, x-bar = 52, s = 5.3, n = 45

Accepted Answer

z test for mean

Question 3

A p-value tells us the probability of a statistics happening on the assumption that the H0 is:

Accepted Answer

True

Question 4

Select the appropriate test. p = .45, x = 7, s = .62, n = 15

Accepted Answer

z test for proportion

Question 5

When the p-value is less than α (significance level) you should:

Accepted Answer

"Reject the null"

Question 6

Select the appropriate test. p = .75, p-hat = .72, σ = .62, n = 15

Accepted Answer

z test for proportion

Question 7

Select the appropriate test. μ = 75, sample mean = 72, σ = 6.2, n = 15

Accepted Answer

z test for mean

Question 8

Select the appropriate test. μ = 45, x-bar = 52, s = 5.3, n = 15

Accepted Answer

t test for mean

Question 9

The average age of YouTube user is 25. Identify whether it's one-tailed or two-tailed test.

Accepted Answer

Two-tailed test

Question 10

Which of the following represents the null hypothesis?

Accepted Answer

H0

Question 11

Hypothesis tests seek evidence against:

Accepted Answer

H0

Questions 11