Mathematics > QUESTIONS & ANSWERS > LATEST 100% CORRECT Chamberlain College of Nursing - MATH 225Week 5 help (All)

LATEST 100% CORRECT Chamberlain College of Nursing - MATH 225Week 5 help

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Week 5 Assignment: Central Limit Theorem for Means 1. Question A family of statisticians is trying to decide if they can afford for their child to play youth baseball. The cost of joining a team i... s normally distributed with a mean of $750 and a standard deviation of $185 . If a sample of 40 teams is selected at random from the population, select the expected mean and standard deviation of the sampling distribution below. Correct answer: σx¯=$29.25 μx¯=$750 The standard deviation of the sampling distribution σx¯=σn−−√=$18540−−√=$29.25 When the distribution is normal the mean of the sampling distribution is equal to the mean of the population μx¯=μ=$750 . Question A cupcake baker is planning a supplies order and needs to know how much flour he needs. He knows that his recipes use an average of 100 grams of flour, normally distributed, with a population standard deviation of 15 grams. If he is consulting a sample size of 30 recipes, select the mean and standard deviation of the sampling distribution to help him order his supplies from the options below. σx¯=2.74 grams μx¯=100 grams ...................................... ......................................................... [Show More]

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