Question

With 90% confidence, for sample mean 325.50, sample standard deviation 13.50, and sample size 35, what is the upper confidence limit with 2 decimal places?

Answer #1

With 90% confidence, for sample mean 319.50, sample standard
deviation 11.50, and sample size 35, what is the upper confidence
limit with 2 decimal places?

With 90 percent confidence, for sample mean 342.50, sample
standard deviation 12.60, and sample size 35, what is the upper
confidence limit with 2 decimal places?

With 90% confidence, for sample mean 380.00, sample standard
deviation 15.00, and sample size 35, what is the upper confidence
limit?

4. With 90% confidence, for sample mean 341.00, sample
standard deviation 14.80, and sample size 35, what is the upper
confidence limit with 2 decimal places?
8. Match the rules for rejecting H0 at the right to the
following tests
a. Two-tail test with lower and upper reject regions
b. One-tail test with lower reject region
c. For any test hypothesis, ANOVA, or Chi Squared, this rule for
rejecting H0 always applies.
d. One-tail test with upper reject region
...

Mean
Sample standard deviation
Population standard deviation
Sample size
Confidence level
Confidence interval
100
20
na
25
95 %
100
20
na
25
90 %
100
40
na
25
90 %
100
40
n.a.
16
90 %
100
n.a.
40
16
90 %
How does the confidence level affect the width of the confidence
interval, other things equal?
How does the size of the standard deviation affect the width of
the confidence interval, other things equal?
How does sample size...

A sample of households shows the following statistics about
household income:
Mean: 60000
Standard Deviation: 5000
Sample Size: 10
At the 80% confidence level, what is the upper limit for the
confidence interval formed with these values? Round to 2 decimal
places.

Population Standard Deviation
5.0000
Sample Size
11
Sample Mean
54.9091
Confidence Interval
Confidence Coefficient
0.98
Lower Limit
Upper Limit
Hypothesis Test
Hypothesized Value
50
Test Statistic
P-value (Lower Tail)
P-value (Upper Tail)
P-value (Two Tail)
0.0012
Sample Size
11
Sample Mean
54.9091
Sample Standard
Deviation
5.5759
Confidence Interval
Confidence Coefficient
0.98
Lower Limit
Upper Limit
Hypothesis Test
Hypothesized Value
50
Test Statistic
P-value (Lower Tail)
P-value (Upper Tail)
P-value (Two Tail)
0.0154
Studies show that massage therapy has a variety...

With 80% confidence, for sample proportion 0.40 and sample size
26, what is the upper confidence limit with 2 decimal places?

With 80% confidence, for sample proportion 0.54 and sample size
25, what is the upper confidence limit with 2 decimal places?

Suppose a 90% confidence interval, based upon a sample of size
35, for the mean number of hours that college students spend on
social media each week was 25 to 35 hours. The sample standard
deviation from this previous study was 17.9. How many students
should be surveyed in order to cut the width of the interval down
from 10 hours to 5 hours? Group of answer choices A.100 B.300 C.250
D.139

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