Question: According to 2016 data from the U.S. Census Bureau, only 32% of Americans are saving for retirement in a 401(k). A random sample of 340

According to 2016 data from the U.S. Census Bureau, only 32% of Americans are saving for retirement in a 401(k). A random sample of 340 Americans was recently selected, and it was found that 119 of them made contributions to their 401(k) plans this year.

a. Using α = 0.01, perform a hypothesis test to determine if the percentage of Americans who have made contributions to their 401(k) plan is more than 32%.

b. Determine the p-value for this test and interpret its meaning.

c. How would the conclusions be affected if you chose to use α = 0.05 rather than α = 0.01.

Step by Step Solution

3.46 Rating (156 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

a H 0 p 032 status quo H 1 p 032 There is not enough evidence to conclude that t... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Business Statistics Questions!