Question
In: Statistics and Probability
Use the given degree of confidence and sample data to construct a confidence interval for the...
Use the given degree of confidence and sample data to construct a confidence interval for the population mean μ .
Assume that the population has a normal distribution. The principal randomly selected six students to take an aptitude test. Their scores were: 72.3 87.0 82.6 86.1 84.5 74.8 Determine a 90 percent confidence interval for the mean score for all students.
a. 86.30 < μ < 76.13
b. 76.13 < μ < 86.30
c. 76.03 < μ < 86.40
d. 86.40 < μ < 76.03
Solutions
orchestra answered 1 year agoRelated Solutions
Use the given degree of confidence and sample data to construct a confidence interval for the...
Use the given degree of confidence and sample data to construct
a confidence interval for the population mean μ. Assume that the
population has a normal distribution. A laboratory tested twelve
chicken eggs and found that the mean amount of cholesterol was 185
milligrams with s = 17.6 milligrams. Construct a 95% confidence
interval for the true mean cholesterol content of all such
eggs.
Use the given degree of confidence and sample data to construct a confidence interval for the...
Use the given degree of confidence and sample data to construct
a confidence interval for the population proportion p. n = 25, x =
10; 95% confidence.
Use the given degree of confidence and sample data to construct a confidence interval for the...
Use the given degree of confidence and sample data to construct
a confidence interval for the population proportion p. Round to
three decimal places. nequals70?, xequals16?; ?95% confidence A.
0.141less thanpless than0.316 B. 0.130less thanpless than0.327 C.
0.125less thanpless than0.332 D. 0.146less thanpless than0.311
Use the given degree of confidence and sample data to construct a confidence interval for the...
Use the given degree of confidence and sample data to construct
a confidence interval for the population mean
mu
.
Assume that the population has a normal distribution.
Thirty randomly selected students took the calculus final. If
the sample mean was 95 and the standard deviation was 6.6,
construct a 99% confidence interval for the mean score of all
students.
Use the given degree of confidence and sample data to construct a confidence interval for the...
Use the given degree of confidence and sample data to construct
a confidence interval for the population mean µ. Assume that the
population has a normal distribution.
Show your work
n = 30, x bar = 89.3, s = 18.9, 90 percent
Use the given degree of confidence and sample data to construct a confidence interval for the...
Use the given
degree of confidence and sample data to construct a confidence
interval for the population mean µ.
The data below
consists of the test scores of 32 students. Construct a 99%
confidence interval for the population
80
74
61
93
96
70
80
64
51
98
93
87
72
77
84
96
100
67
71
79
99
85
66
70
57
75
86
92
94
61
80
99
Use the given degree of confidence and sample data to construct a confidence interval for the...
Use the given degree of confidence and sample data to construct
a confidence interval for the population mean µ. Assume that the
population has a normal distribution.
n = 10, x = 12.8, s = 2.8, 95 percent
Use the given degree of confidence and sample data to construct a confidence interval for the...
Use the given degree of confidence and sample data to construct
a confidence interval for the population proportion
p.
nequals=56,
xequals=30;
95% confidence
A.
0.426less than<pless than<0.646
B.
0.405less than<pless than<0.666
C.
0.425less than<pless than<0.647
D.
0.404less than<pless than<0.668
Use the given degree of confidence and sample data to construct a confidence interval for the...
Use the given degree of confidence and sample data to construct
a confidence interval for the population proportion p. Of 125
adults selected randomly from one town, 31 of them smoke. Construct
a 99% confidence interval for the true percentage of all adults in
the town that smoke.n
Use the given degree of confidence and sample data to construct a confidence interval for the...
Use the given degree of confidence and sample data to construct
a confidence interval for the population proportion p. nequals195,
xequals162; 95% confidence A. 0.778less thanpless than0.883 B.
0.788less thanpless than0.873 C. 0.777less thanpless than0.884 D.
0.789less thanpless than0.873
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