ou want to know if the average wand is less than 12 inches long. You surveys 36 of classmates and finds an average wand length of 11.5 inches and sample standard deviation of 1.1 inches. Use a significance level of 1%. Find the P-value:  Come to a conclusion:

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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you want to know if the average wand is less than 12 inches long. You surveys 36 of classmates and finds an average wand length of 11.5 inches and sample standard deviation of 1.1 inches. Use a significance level of 1%.

  1. Find the P-value: 
  2. Come to a conclusion: 
Expert Solution
Step 1

Solution:

n= 36 Sample size

μ=12 inches population meanx=11.5 inches sample means=1.1 inches sample standard deviationsα=0.01 level of significance

 

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