Identify which hypothesis test is appropriate for each of th…
Identify which hypothesis test is appropriate for each of the following scenarios. A local driver training school claims that at least 75% of its pupils pass the driving test on their first attempt. A sample of 60 students from the school are selected, and their performances on the driving test are noted. We wish to determine if the claim of the school is true. The daily wages in a particular industry are normally distributed with a mean of $13.20 and a standard deviation of $2.50. A company in this industry employs 40 workers and pays a daily wage, on average, of $12.20. We wish to determine if this company can be accused of paying inferior wages. Suppose that the national average price for used cars is $10,192. A manager of a local car dealership reviewed a random sample of 25 recent used car sales at the dealership and found the mean was $9750 and the standard deviation was $1400. We wish to determine if the price of used cars at the dealership differs from the national mean. Starting salaries are determined for 40 female and 40 male electrical engineers. We wish to determine if male electrical engineers tend to have higher starting salaries than their female counterparts.