The average number of miles a person drives per day is 24. A researcher wishes to see if people over age 60drive less than 24miles per day. She selects a random sample of 32 drivers over the age of 60 and finds that the mean number of miles driven is 23.4. The population standard deviation is 3.7 miles. At =α0.10, is there sufficient evidence that those drivers over 60 years old drive less than 24 mil
Daily Driving The average number of miles a person drives per day is 24. A researcher wishes to see if people over age 60drive less than 24miles per day. She selects a random sample of 32 drivers over the age of 60 and finds that the mean number of miles driven is 23.4. The population standard deviation is 3.7 miles. At =α0.10, is there sufficient evidence that those drivers over 60 years old drive less than 24 miles per day on average? Assume that the variable is
State the hypotheses and identify the claim with the correct hypothesis.
:H1>μ145 ▼claim/ not claim?
This hypotheses test is a ▼one-tailed test/two tail?
Find the critical value(s). Round the answer to two decimal places. If there is more than one critical value, separate them with commas.
Compute the test value. Always round z score values to two decimal places
Make the decision.
Summarize the results.
| There ▼(Choose one) enough evidence to support the claim that the mean number of Facebook friends is greater than 145. |
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