Answer :
Final answer:
The maximum mean weight of the passengers when the gondola is filled to capacity is 140 lb. To calculate the probability that the mean weight of 25 randomly selected skiers exceeds this value, we can use the Central Limit Theorem and z-scores.
Explanation:
To find the maximum mean weight of the passengers if the gondola is filled to the stated capacity of 25 passengers, we divide the load limit (3500 lb) by the number of passengers (25). Therefore, the maximum mean weight is 140 lb.
To calculate the probability that the mean weight of 25 randomly selected skiers exceeds 140 lb, we can use the Central Limit Theorem. We calculate the z-score for 140 lb using the formula: z = (x - μ) / (σ / sqrt(n)). Once we have the z-score, we can use a standard normal distribution table or calculator to find the probability that the z-score is greater than the calculated value.
Therefore, the probability that the mean weight exceeds the value from part (a) is the probability of the z-score being greater than the calculated value.
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