MathCastle
Statistics & DataChallengeSampling Distributions

Sampling Distributions · Challenge problem

Adult men's heights are normal with mean 175175 cm and standard deviation 1212 cm; adult women's heights are normal with mean 162162 cm and standard deviation 1515 cm. Independent random samples of 99 men and 2525 women are measured. What is the probability that the men's sample mean exceeds the women's sample mean by LESS than 55 cm? Give your answer to four decimal places.