Question

According to the local union president, the mean gross income of plumbers in the Salt Lake City area follows a normal distribution with a mean of $48,000 and a standard deviation of $2,000. A reacent investigative reporter for KYAK TV found, for a sample of 100 plumbers, the mean gross income was $47,600. If the sample size was 1000 plumbers and not 100, the p value calculation would lead one the believe that there is:

a: strong evidence that Ho is not true

b: some evidence that Ho is not true

c: very strong evidence that Ho is not true

d: extremely strong evidence that Ho is not true.

Answer 1

Therefore since the value is very less, its its some evidence.

Therefore (b) is the answer for this question