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29 Nov 2021
Problem 43
Page 557
Section: PRACTICE
Chapter 10: HYPOTHESIS TESTING WITH TWO SAMPLE
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29 Nov 2021
Given information
Use the following information to answer the next five exercises. Two metal alloys are being considered as material for ball bearings. The mean melting point of the two alloys is to be compared. 
pieces of each metal are being tested. Both populations have normal distributions. The following table is the result. It is believed that Alloy Zeta has a different melting point.
pieces of each metal are being tested. Both populations have normal distributions. The following table is the result. It is believed that Alloy Zeta has a different melting point.
Step-by-step explanation
Step 1.
To find the 
press 
and 
.
Twice to select 
Select the 
sample 
and press 
as displayed,
Once all the sample entries are made press to obtain the results as,
As displayed, the is 
.
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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208
Solutions
Chapter
Section
- Problem 1
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