In: Statistics and Probability
A local council official wishes to test the hypothesis that the average hourly wage of council office cleaners is the National Living Wage of £8.72 against the alternative hypothesis that it is higher than this value. A random sample of 16 cleaners provides a sample mean hourly wage of £9.00 with a sample variance of 4.00.
Under the assumption that the target population is normally
distributed, The
critical value used to conduct the test, using a 5% significance
level is (to two
decimal places):
1.75 |
||
1.96 |
||
2.13 |
||
None of the other answers is correct |
||
1.65 |