statistics quiz 1 hypothesis testing
QUESTION 1
1. Write the complement of μ = 58 and state which is H0 and which is Ha.
12.5 points
QUESTION 2
1. Write the complement of p > 7 and state which is H0 and which is Ha.
12.5 points
QUESTION 3
1. Determine whether the hypothesis test below is left-tailed, right-tailed, or two-tailed.
left-tailed
right-tailed
two-tailed
12.5 points
QUESTION 4
1. Determine whether the hypothesis test below is left-tailed, right-tailed, or two-tailed.
left-tailed
right-tailed
two-tailed
12.5 points
QUESTION 5
1. Write the claim below as a mathematical statement. State the null and alternative hypotheses and identify which represents the claim.
“As stated by a company’s shipping department, the number of shipping errors per million shipments has a standard deviation of more than 3.”
12.5 points
QUESTION 6
1. Write the claim below as a mathematical statement. State the null and alternative hypotheses and identify which represents the claim.
“An amusement park claims that the mean daily attendance at the park is at least 20,000 people.”
For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).
12.5 points
QUESTION 7
1. In a hypothesis test, the null hypothesis states that the the population standard deviation is no more than 20. How should you interpret a decision that
rejects the null hypothesis?
12.5 points
QUESTION 8
1. In a hypothesis test, the alternative hypothesis states that the the population mean differs from 115. How should you interpret a decision that fails to
reject the null hypothesis?
