What does brand loyalty mean to​ consumers? According to a recent research​ report, 38​% of consumers associate trust with brand loyalty. Complete parts​ (a) through​ (e) below.       a. To conduct a​ follow-up study that would provide 95​% confidence that the point estimate is correct to within ±0.04 of the population​ proportion, how large a sample size is​ required?   A sample size of 566566 consumers is required. ​(Round up to the nearest​ integer.) b. To conduct a​ follow-up study that would provide 99​% confidence that the point estimate is correct to within ±0.04 of the population​ proportion, how many people need to be​ sampled?   A sample size of 978978 consumers is needed. ​(Round up to the nearest​ integer.) c. To conduct a​ follow-up study that would provide 95​% confidence that the point estimate is correct to within ±0.02 of the population​ proportion, how large a sample size is​ required?   A sample size of 22632263 consumers is required.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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What does brand loyalty mean to​ consumers? According to a recent research​ report,
38​%
of consumers associate trust with brand loyalty. Complete parts​ (a) through​ (e) below.
 
 
 
a.
To conduct a​ follow-up study that would provide
95​%
confidence that the point estimate is correct to within
±0.04
of the population​ proportion, how large a sample size is​ required?
 
A sample size of
566566
consumers is required.
​(Round up to the nearest​ integer.)
b.
To conduct a​ follow-up study that would provide
99​%
confidence that the point estimate is correct to within
±0.04
of the population​ proportion, how many people need to be​ sampled?
 
A sample size of
978978
consumers is needed.
​(Round up to the nearest​ integer.)
c.
To conduct a​ follow-up study that would provide
95​%
confidence that the point estimate is correct to within
±0.02
of the population​ proportion, how large a sample size is​ required?
 
A sample size of
22632263
consumers is required.
​(Round up to the nearest​ integer.)
d.
To conduct a​ follow-up study that would provide
99​%
confidence that the point estimate is correct to within
±0.02
of the population​ proportion, how many people need to be​ sampled?
 
A sample size of
39213921
consumers is needed.
​(Round up to the nearest​ integer.)
e.
Discuss the effects of changing the desired confidence level and the acceptable sampling error on sample size requirements. Select all that apply.
 
 
A.
The higher the level of confidence​ desired, the larger is the sample size required.
 
B.
The higher the level of confidence​ desired, the smaller is the sample size required.
 
C.
The smaller the sampling error​ desired, the smaller is the sample size required.
 
D.
The higher the sampling error​ desired, the larger is the sample size required.
 
E.
The smaller the level of confidence​ desired, the larger is the sample size required.
 
F.
The smaller the sampling error​ desired, the larger is the sample size required.
 
G.
There are no effects on the sample size requirements.
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