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Suppose x has a distribution with a mean of 80 and a standard deviation of 4. Random samp (a) Describe the x distribution. O has a Poisson distribution. O has an approximately normal distribution. O has a normal distribution. O has an unknown distribution. O has a binomial distribution. O has a geometric distribution. Compute the mean and standard deviation of the distribution. (For each answer, enter a number.) Px- Oy (b) Find the z value corresponding to x-81. (Enter an exact number.) 2 M (c) Find P(x < 81). (Enter a number. Round your answer to four decimal places.) P(x < 81) -

Suppose x has a distribution with a mean of 80 and a standard deviation of 4. Random samp (a) Describe the x distribution. O has a Poisson distribution. O has an approximately normal distribution. O has a normal distribution. O has an unknown distribution. O has a binomial distribution. O has a geometric distribution. Compute the mean and standard deviation of the distribution. (For each answer, enter a number.) Px- Oy (b) Find the z value corresponding to x-81. (Enter an exact number.) 2 M (c) Find P(x < 81). (Enter a number. Round your answer to four decimal places.) P(x < 81) -

MATLAB: An Introduction with Applications
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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Plz do all four subparts because i cann't upload it individually..i will upvote you ...thanks

Suppose x has a distribution with a mean of 80 and a standard deviation of 4. Random samples of size n= 64 are drawn. (a) Describe the x distribution. O x has a Poisson distribution. Ox has an approximately normal distribution. O has a normal distribution. Ox has an unknown distribution. Ox has a binomial distribution. O has a geometric distribution. Compute the mean and standard deviation of the distribution. (For each answer, enter a number.) PR Oy (b) Find the z value corresponding to x = 81. (Enter an exact number.) ZW (c) Find P(x < 81). (Enter a number. Round your answer to four decimal places.) P(x<81) - (d) Would it be unusual for a random sample of size 64 from the x distribution to have a sample mean less than 81? Explain. O Yes, it would be unusual because more than 5% of all such samples have means less than 81. O No, it would not be unusual because less than 5% of all such samples have means less than 81. O Ye it would be unusual because less than 5% of all such samples have means less than 81. O No, it would not be unusual because more than 5% of all such samples have means less than 81.
Transcribed Image Text:Suppose x has a distribution with a mean of 80 and a standard deviation of 4. Random samples of size n= 64 are drawn. (a) Describe the x distribution. O x has a Poisson distribution. Ox has an approximately normal distribution. O has a normal distribution. Ox has an unknown distribution. Ox has a binomial distribution. O has a geometric distribution. Compute the mean and standard deviation of the distribution. (For each answer, enter a number.) PR Oy (b) Find the z value corresponding to x = 81. (Enter an exact number.) ZW (c) Find P(x < 81). (Enter a number. Round your answer to four decimal places.) P(x<81) - (d) Would it be unusual for a random sample of size 64 from the x distribution to have a sample mean less than 81? Explain. O Yes, it would be unusual because more than 5% of all such samples have means less than 81. O No, it would not be unusual because less than 5% of all such samples have means less than 81. O Ye it would be unusual because less than 5% of all such samples have means less than 81. O No, it would not be unusual because more than 5% of all such samples have means less than 81.
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