Paired sample test, (1) construct a 95% confidence interval and
(2) conduct a t-test (α = 5%). This is to report to the NFL
commisioner regarding points scored vs points allowed.
Data sets below
Team
Points Scored
Points Allowed
Los Angeles
463
429
Seattle
452
271
Indianapolis
439
247
New Orleans
435
398
NY Gants
422
314
Cincinnati
421
350
San Diego
418
312
Philadelphia
410
388
Kansas City
403
325
Tennessee
399
421
Green Bay
398
344
Denver
395...
Given the follow data for two pooled samples, calculate %95
confidence interval for each
mean, 95% confidence interval for difference of means, and
one-tailed p-value for the null hypothesis, “Y
not greater than X”.
a. sample X: n=12, mean = 20.0, std. deviation = 3.1
sample Y: n = 12, mean = 22.0, std. deviation = 3.1
b. Same as part a, except the mean of Y is 23.0
c. Same as part a, except the standard deviation of Y...
calculate the range for the expected true mean temperature with
95% confidence (2-sided confidence interval)
calculate the value the true mean temperature should be greater
than with 95% confidence (1-sided confidence interval)
What is the difference between these two problems?
what equation do I use?
one can calculate the 95% confidence interval for the
mean with the population standard deviation knowing this gives us
an upper and lower confidence limit what happens if we decide to
calculate the 99% confidence interval describe how the increase in
the confidence level has changed the width of the confidence
interval
One can calculate the 95% confidence interval for the mean with
the population standard deviation known. This will give us an upper
and a lower confidence limit. What happens if we decide to
calculate the 99% confidence interval? Describe how the increase in
the confidence level has changed the width of the confidence
interval. Do the same for the confidence interval set at 80%.
Include an example with actual numerical values for the intervals
in your post to help with...
For the data set below, calculate r, r
2, and a 95% confidence interval in r units.
Then write a one- to two-sentence conclusion statement that
includes whether the null hypothesis was rejected or not. Assume a
two-tailed hypothesis and α = .05.
Case 1
Case 2
Case 3
Case 4
Case 5
Case 6
X
1.05
1.15
1.30
2.00
1.75
1.00
Y
2
2
3
4
5
2
One can calculate the 95% confidence interval for the mean with
the population standard deviation known. This will give us an upper
and a lower confidence limit. What happens if we decide to
calculate the 99% confidence interval?
Your task for this discussion is as follows:
Describe how the increase in the confidence level has changed
the width of the confidence interval. Do the same for the
confidence interval set at 80%.
Include an example with actual numerical values for...