Question: A 2010 survey by CarMD. com found that 64% of vehicle owners avoided automotive maintenance and repairs. Suppose Sears Automotive would like to perform a
A 2010 survey by CarMD. com found that 64% of vehicle owners avoided automotive maintenance and repairs. Suppose Sears Automotive would like to perform a hypothesis test to challenge this finding. From a random sample of 170 vehicle owners that was recently taken, it was found that 103 avoid maintenance and repairs. Using σ = 0.02, answer the following questions:
a. Based on this sample, can we conclude that the proportion of vehicle owners who avoid maintenance has changed since 2010?
b. Determine the p value for this test.
c. Verify your results using PHStat.
Step by Step Solution
3.30 Rating (162 Votes )
There are 3 Steps involved in it
a We do not have enough evidence to conclude that the percent of car ... View full answer
Get step-by-step solutions from verified subject matter experts
Document Format (1 attachment)
483-M-S-H-T (1430).docx
120 KBs Word File
