The average cost of a men’s haircut in Los Angeles County is…
Questions
The аverаge cоst оf а men's haircut in Lоs Angeles County is $18 with a standard deviation of $6. Assume the data follows a normal distribution. From a sample of 30 barbershops in the West Hollywood area of Yelp, it was found that the average cost of a men's haircut was $22 with a standard deviation of $8. Is there enough evidence to suggest that an average men's haircut is not $22? Test the claim with a level of significance = 0.05. The population parameter in this problem = [ans1] The standard deviation associated with the statistic in this problem = [ans2] Step 2: Test the Claim What type of test score should you convert the statistic into? [ans3] Which formula below would you use to calculate the test score? [ans4] What is the value of that test score? [ans5] What is the value of the critical score? [ans6]
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