6. An automatic Coffeedispenser is advertised topour u=16 oz of coffeewith a standarddeviation of o-0.1 oz.An unsatisfied customerwants to know if theautomatic Coffeedispenser pours less than16 oz on average. Arandom sample of n=49cups of coffee is takenand is found to have asample mean x = 15.96oz. Use a a-5% level ofsignificance to test if thepopulation mean u isless than 16 oz.a) State the null andalternate hypothesis.b) Find the test statistic(either z or t).c) Find the p-value orsketch the criticalregion.d) State whether youwill reject or fail toreject the null

The following information has been provided. Hypothesized population = 16 Sample size = 49 Sample…

Answered: 6. An automatic Coffee dispenser is…

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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A survey found that women's heights are normally distributed with mean 62.2in. and standard deviation 3.7in. The survey also found that men's heights are normally distributed with mean 67.7in. and standard deviation 3.5in. Most of the live characters employed at an amusement park have height requirements of a minimum of 57in. and a maximum of 62in. Find the percentage of men meeting the height requirement. What does the result suggest about the genders of the people who are employed as characters at the amusement park? The percentage of men who meet the height requirement is
The diameter of a mason jar is 3 inches but can be as large as 3.05 inches and as small as 2.95 inches. Twenty-five samples of mason jars are taken and it is discovered that these components have a grand mean of 3.01 inches and a standard deviation of 0.03 inches. What is the Cpk value?
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The average number of miles a person drives per day is 30. A researcher wishes to see if people over age of 60 drive less than 30 miles a day. She selects a random sample of 43 drivers over the age of 60 and finds that the mean number of miles driven is 28.2. The population standard deviation is 3.2 miles. At 0.05 level of significance, is there sufficient evidence that those drivers over 60 years old drive less than 30 miles per day on average? Assume that the variable is normally distributed. Express your answers correct to 2 decimal places. Type your answers in this order: a) to d) a) What test should be performed (z or t)? Type the corresponding letter. b) Find the critical value(s). If there are two values (2 -tail test), type the negative value first and separate them with a comma. c) Calculate the test statistic d) Make a decision. Type R if you choose to "Reject the nullI hypothesis, Type F if you choose to "Fail to reject the null hypothesis".
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