Elementary Statistics
12th Edition
ISBN: 9780321837936
Author: Mario F. Triola
Publisher: PEARSON
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Chapter 6.4, Problem 14BSC
a.
To determine
To obtain: The variance of each sample and construct the table for the sampling distribution of the sample variance. In the table, combine the values of the sample variance that are the same.
b.
To determine
To compare: The variance of the population {56, 49, 58, 46} to the mean of the sampling distribution of the sample variance.
c.
To determine
To check: Whether the sample variance target the value of the population variance.
To explain: The reason for the sample variances to make good estimators of population variances.
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Students have asked these similar questions
The table below shows the estimated effects for a logistic regression model with squamous cell esophageal cancer (Y = 1, yes; Y = 0, no) as the response. Smoking status (S) equals 1 for at least one pack per day and 0 otherwise, alcohol consumption (A) equals the average number of alcohoic drinks consumed per day, and race (R) equals 1 for blacks and 0 for whites.
Variable
Effect (β)
P-value
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-7.00
<0.01
Alcohol use
0.10
0.03
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1.20
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0.30
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Race × smoking
0.20
0.04
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2. Fill in this table
Range
(-⁰⁰, 2.34]
(2.34, 2.81]
(2.81, 3.27]
(3.27,00)
Observed
802
Expected
854.2
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frequencies are calculated under the assumption that the null hypothesis is true.
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Chapter 6 Solutions
Elementary Statistics
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