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- 1. Multiple ChoiceThe smaller the p-value, the stronger the evidence against the _____________ hypothesisnullalternative
- 2. Multiple ChoiceIf the p-value is less than α, we reject H0TrueFalse
- 3. Multiple Choice
If μ1-μ2 = 0, is in the 90% confidence interval, what can we conclude at α = 0.10?
Reject H0, there is sufficient evidence to conclude Ha
Reject H0, there is NOT sufficient evidence to conclude Ha
Fail to reject H0, there is sufficient evidence to conclude Ha
Fail to reject H0, there is NOT sufficient evidence to conclude Ha
- 4. Multiple ChoiceA hypothesis test is performed and
p-value = 0.02. Which is the best conclusion?H0 is rejected at α = 0.01.H0 is rejected at α = 0.05.Ha is rejected at α = 0.01.Ha is rejected at α = 0.05. - 5. Multiple ChoiceA two-tailed hypothesis test with H0: μ1-μ2 = 0 produced a p-value of 0.08. Which of the following must be true?The 90% confidence interval will NOT contain 0.The 95% confidence interval will NOT contain 0.The 99% confidence interval will NOT contain 0.All the confidence intervals listed will contain 0.
- 6. Multiple Choice
How much faster do people who own sports cars drive on the freeway compared to people who own economy cars. 520 sports cars and 890 economy cars were clocked as they passed by on the freeway. Which procedure is appropriate?
t interval for means
t interval for difference of means
- 7. Multiple Choice
How much more time do men spend listening to music compared to women? 52 men and 52 women were surveyed. Which procedure is appropriate?
t interval for difference of means
t test for difference of means
- 8. Multiple Choice
An amusement park owner is considering changing her model from "pay for each ride" to "one fee for all rides." She observes 2000 guests to see if they spend less than the $30 fee that she intends to put into place. Which procedure is appropriate?
t interval for means
t test for means
- 9. Multiple Choice
Estimate the average number of pinecones that a 30-year-old pine tree produces each year. Fifty-five pine trees were observed over a one-year period. Which procedure is appropriate?
t interval for means
t test for means
- 10. Multiple Choice
Are art museums better attended on rainy days than on sunny days? Attendance numbers at the city museum of art were examined for 100 rainy days and 300 sunny days. Which procedure is appropriate?
t interval for difference of means
t test for difference of means
- Answer choicesTagsAnswer choicesTags