1. Use the confidence level and sample data to find a confidence interval for es
ID: 2983033 • Letter: 1
Question
1. Use the confidence level and sample data to find a confidence interval for estimating the population u. Round your answer to the same number of decimal places as the sample mean.
A laboratory tested 72 chicken eggs and found that the mean amount of cholesterol was 203 milligrams with a standard deviation=14.7 milligrams. Construct a 95% confidence interval for the true mean cholesterol content, u, of such all eggs.
a. 199mg<u<206mg
b. 201mg<u<207mg
c. 199mg<u<205mg
d. 200mg<u<206mg
2. Use the degree of confidence and sample data to construct a confidence interval for the population o. Round to three decimal places.
N=52, x=14, 95% confidence
a. 0.163<p<0.375
b. 0.168<p<0.370
c. 0.149<p<0.390
d. 0.144<p<0.395
3. Use the given information to find the minimum sample size required to estimate an unknown population mean u.
Margin of error: $121, confidence level: 99%, satndard deviation= $529
a. 65
b. 52
c. 127
d. 73
4. Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p. Round to three decimal places.
N= 141, x=73; 90% confidence
a. 0.190<p<0.328
b. 0.380<p<0.656
c. 0.483<p<0.553
d. 0.449<p<0.587
Explanation / Answer
A
C
B
B
If (n>=30),
CI = x
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.