Question

g Workers employed in a large service industry have an average wage of $9.00 per hour with a standard deviation of $0.50. The industry has 64 workers of a certain ethnic group. These workers have an average wage of $8.85 per hour. Calculate the probability of obtaining a sample mean less than or equal to $8.85 per hour. (Round your answer to four decimal places.)

Answer 1

Answer: 0.3821

Step-by-step explanation:

Let x be the random variable that represents the wages.

Given: Workers have an average wage of $9.00 per hour with a standard deviation of $0.50.

The probability of obtaining a sample mean less than or equal to $8.85 per hour:

$P(X$

The required probability = 0.3821