A manufacturer must test that his bolts are 5.00 cm long when they come off the assembly line. He must recalibrate his machines if the bolts are too long or too short. After sampling 196 randomly selected bolts off the assembly line, he calculates the sample mean to be 5.05 cm. He knows that the population standard deviation is 0.32 cm. Assuming a level of significance of 0.01, is there sufficient evidence to show that the manufacturer needs to recalibrate the machines? Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Answer Ho : μ = 5.00 Ha P O O H 5.00 Keypad Keyboard Shortcut Tables

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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SECTION 10.2

Step 1 of 3 :  State the null and alternative hypotheses for the test. Fill in the blank below.
 
Step 2 of 3 :  Compute the value of the test statistic. Round your answer to three decimal places.

Step 3 of 3: Do we reject the null hypothesis? Is there sufficient or insufficient data?

 

A manufacturer must test that his bolts are 5.00 cm long when they come off the assembly line. He must recalibrate his machines if the
bolts are too long or too short. After sampling 196 randomly selected bolts off the assembly line, he calculates the sample mean to be
5.05 cm. He knows that the population standard deviation is 0.32 cm. Assuming a level of significance of 0.01, is there sufficient evidence
to show that the manufacturer needs to recalibrate the machines?
Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below.
Answer
Ho :μ = 5.00
Ha M
V
H
V
5.00
Tables
Keypad
Keyboard Shortcuts
Transcribed Image Text:A manufacturer must test that his bolts are 5.00 cm long when they come off the assembly line. He must recalibrate his machines if the bolts are too long or too short. After sampling 196 randomly selected bolts off the assembly line, he calculates the sample mean to be 5.05 cm. He knows that the population standard deviation is 0.32 cm. Assuming a level of significance of 0.01, is there sufficient evidence to show that the manufacturer needs to recalibrate the machines? Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Answer Ho :μ = 5.00 Ha M V H V 5.00 Tables Keypad Keyboard Shortcuts
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