A filling machine puts an average of four ounces of coffee in jars, with astandard deviation of 0.25 ounces. Forty jars filled by this machine areselected at random.What is the probability that the mean amount per jar filled in the sampled jarsis less than 3.9 ounces?0.02500.0500None of these0.34460.0057O 0.0225What is the z-score for this problem? (Your answer must be accurate up to twodecimal places.)Your answer

Answered: Image /qna-images/answer/e6ca48ef-8683-43cd-8d7d-ae92f7d6a2d9.jpg

Answered: standard deviation of 0.25 ounces.…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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If n=7 (days in a week) and p=0.45 (the probability that the food truck operates on a single day), determine the theoretical mean and standard deviation for the number of days open in a week. Use Excel and the information given in part above (n=7, p=.45) to determine the probability that the number of days open in a week is 5 days.
The average score of all golfers for a particular course has a mean of 61 and a standard deviation of 5. Suppose 100 golfers played the course today. Find the probability that the average score of the 100 golfers exceeded 62. Round to four decimal places. O A. 0.1293 B. 0.3707 O C. 0.4772 O D. 0.0228
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Assume that the average weight of an NFL player is 245.7 lbs with a standard deviation of 34.5 lbs. The distribution of NFL weights is not normal. Suppose you took a random sample of 32 players. What is the probability that the sample average will be less than 240 lbs? Round your answer to three decimal places, eg 0.192.
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Assume that the average weight of an NFL player is 245.7 lbs with a standard deviation of 34.5 lbs. The distribution of NFL weights is not normal. Suppose you took a random sample of 32 players. What is the probability that the sample average will be greater than 240 lbs? Round your answer to three decimal places, eg 0.192.
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standard deviation of 0.25 ounces. Forty jars filled by this machine are selected at random. What is the probability that the mean amount per jar filled in the sampled jars is less than 3.9 ounces? 0.0250 0.0500 None of these 0.3446