3. Mr. Guo selects a random sample of size n = 16 from a populationthat is normally distributed. The sample is found to have x = 78 and0² = 4.I(a) Mr. Guo wishes to construct a 98% confidence interval for fly thepopulation mean. Are all conditions met? If not, explain why.(b) Find an appropriate critical number associated with a central 98%confidence interval. Hint: Which distribution should we use?(c) Construct a central 98% confidence interval for u.

Sample size, n = 16 Sample mean x̅ = 78 Population variance σ2 = 4 So, Population standard deviation…

Answered: 3. Mr. Guo selects a random sample of…

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 sample of size 59 from a population having standard deviation o = 56 produced a mean of 269.00. The 95% confidence interval for the population mean (rounded to two decimal places) is: The lower limit is i The upper limit is i
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b )part?
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