Question: A certain elevator has a maximum legal carrying capacity of
A certain elevator has a maximum legal carrying capacity of 6000 pounds. Suppose that the population of all people who ride this elevator have a mean weight of 160 pounds with a standard deviation of 25 pounds. If 35 of these people board the elevator, what is the probability that their combined weight will exceed 6000 pounds? Assume that the 35 people constitute a random sample from the population.
Answer to relevant QuestionsWhen is an estimator said to be consistent? Is the sample mean, , a consistent estimator of µ? Explain. Consider a large population with µ = 90 and σ = 18. Assuming n/N < .05, find the mean and standard deviation of the sample mean, , for a sample size of a. 10 b. 3 The living spaces of all homes in a city have a mean of 2300 square feet and a standard deviation of 500 square feet. Let be the mean living space for a random sample of 25 homes selected from this city. Find the mean and ...The amounts of electricity bills for all households in a particular city have an approximately normal distribution with a mean of $140 and a standard deviation of $30. Let be the mean amount of electricity bills for a ...For a population, N = 10,000, µ = 124, and σ = 18. Find the z value for each of the following for n = 36. a. = 128.60 b. = 119.30 c. = 116.88 d. = 132.05
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