Probability and statistics

Question

Use a 0.01 level of significance to test the claim that the mean age of actresses when they win the Oscars is 33 years. A sample of 182 actresses was found to have a mean age of 35.9 years. The standard deviation was 11.1 years.

Answer 1

Compute the t-statistic = (sample mean - claim mean)/(Standard deviation/sqrt(sample size))

Determine p-value for t-statistic. If p-value < 0.01, them reject the null hypothesis.