You want to know if the average wand is less than 12 inches long. You survey 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 null and alternative hypothesis: Find the test statistic:

You want to know if the average wand is less than 12 inches long. You survey 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 null and alternative hypothesis: Find the test statistic:

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

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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Concept explainers

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.

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Find the null and alternative hypothesis:
Find the test statistic:

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