The average number of miles a person drives per day is 30. A researcher wishes to see if peopleover age of 60 drive less than 30 miles a day. She selects a random sample of 43 drivers over theage of 60 and finds that the mean number of miles driven is 28.2. The population standarddeviation is 3.2 miles. At 0.05 level of significance, is there sufficient evidence that those driversover 60 years old drive less than 30 miles per day on average? Assume that the variable isnormally distributed.Express your answers correct to 2 decimal places. Type your answers in this order: a) to d)a) What test should be performed (z or t)? Type the corresponding letter.b) Find the critical value(s). If there are two values (2 -tail test), type the negative value first andseparate them with a comma.c) Calculate the test statisticd) Make a decision. Type R if you choose to "Reject the nullI hypothesis, Type F if you choose to"Fail to reject the null hypothesis".

Name: The average number of miles a person drives per day is 30. A research
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: The average number of miles a person drives per day is 30. A researcher wishes to see if peopleover age of 60 drive less than 30 miles a day. She selects a random sample of 43 drivers over theage of 60 and finds that the mean number of miles driven