The wildlife department has been feeding a special food to rainbow trout fingerlings. based on a large number of observations, the weight of the trout are normally distributed with a mean of 402.7 grams and a standard deviation of 8.8 grams. what is the probability that the mean weight for a sample of 40 trout exceeds 405.5 grams?

0.0222

Step-by-step explanation:

Given : The wildlife department has been feeding a special food to rainbow trout fingerlings.

Based on a large number of observations, the weight of the trout are normally distributed with

Mean :

Standard deviation :

Sample size : = 40

Let x be the random variable that represents the weight of the trout .

Z-score :

For x=405.5 grams

By using standard normal distribution table , the probability that the mean weight for a sample of 40 trout exceeds 405.5 grams :-

answer: plz give a pic and answer choices so i can answer!

step-by-step explanation: