In 2010,the proportion of employees at a large company who commuted to work by car was 8%.A current survey investigates whether the proportion of employees who commute by car to work is higher than it was in 2010.What are the null and alternative hypotheses? A)H0: p = 0.08 HA: p 0.08 HA: p 0.08 D)H0: p = 0.08 HA: p ≠ 0.08 E)H0: p

Question

In 2010,the proportion of employees at a large company who commuted to work by car was 8%.A current survey investigates whether the proportion of employees who commute by car to work is higher than it was in 2010.What are the null and alternative hypotheses? A)H0: p = 0.08 HA: p < 0.08 B)H0: p > 0.08 HA: p < 0.08 C)H0: p = 0.08 HA: p > 0.08 D)H0: p = 0.08 HA: p ≠ 0.08 E)H0: p < 0.08 HA: p = 0.08

Quizplus · Accepted Answer

The best choice for the null and alternative hypotheses would be:
H0: p = 0.08 (proportion of employees who commuted to work by car in 2010)
HA: p > 0.08 (proportion of employees who commute to work by car now is higher than it was in 2010)
This is because we are testing if the proportion of employees who commute by car now is higher than it was in 2010, which implies that the null hypothesis should be the proportion in 2010 and the alternative hypothesis should be the proportion now being greater. Thus, option (C) is the correct choice.

In 2010,the Proportion of Employees at a Large Company Who