Winter Temperatures A random sample of daily high temperatures in January and February is listed below. At α=0.05, can it be concluded that there is a difference in variances in high temperature between the two months? Jan. 24 42 43 31 22 24 31 42 33 34 Feb. 29 31 24 28 30 24 27 34 27 Use σ1 for the standard deviation of the daily high temperatures in January. (a)State the hypotheses and identify the claim. H0: claim/ do not claim H1: claim/do not claim This hypothesis test one tailed/two tailed a (Choose one) test. (b)Find the critical value. Round the answer to at least two decimal places.
Winter Temperatures A random sample of daily high temperatures in January and February is listed below. At α=0.05, can it be concluded that there is a difference in variances in high temperature between the two months?
| Jan. |
24
|
42
|
43
|
31
|
22
|
24
|
31
|
42
|
33
|
34
|
| Feb. |
29
|
31
|
24
|
28
|
30
|
24
|
27
|
34
|
27
|
Use σ1 for the standard deviation of the daily high temperatures in January.
(a)State the hypotheses and identify the claim.
H0: claim/ do not claim
H1: claim/do not claim
This hypothesis test one tailed/two tailed a (Choose one) test.
(b)Find the critical value. Round the answer to at least two decimal places.
Critical value is
(c)Compute the test value. Round the standard deviations and F
score values to at least two decimal places as needed.
F=
(d)Make the decision.
Reject/ do not reject (Choose one) the null hypothesis.
(e)Summarize the results.
There is/is not enough evidence to support the claim
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