Mathematics, 27.11.2020 01:40 Kstearns694
Words were displayed on a computer screen with background colors of red and blue. Results from scores on a test of word recall are given below. Use a significance level to test the claim that the samples are from populations with the same standard deviation. Assume that both samples are independent simple random samples from populations having normal distributions. Does the background color appear to have an effect on the variation of word recall scores?
n
s
Red Background
Blue Background
What are the null and alternative hypotheses?
A.
:
:
B.
:
:
C.
:
:
D.
:
:
Identify the test statistic.
F
nothing (Round to two decimal places as needed.)
Use technology to identify the P-value.
The P-value is
nothing. (Round to three decimal places as needed.)
What is the conclusion for this hypothesis test?
A.
. There is evidence to warrant rejection of the claim that the samples are from populations with the same standard deviation.
B.
. There is evidence to warrant rejection of the claim that the samples are from populations with the same standard deviation.
C.
. There is evidence to warrant rejection of the claim that the samples are from populations with the same standard deviation.
D.
. There is evidence to warrant rejection of the claim that the samples are from populations with the same standard deviation.
Does the background color appear to have an effect on the variation of word recall scores?
A.
, the variation of word recall scores appears to be when the color is changed.
B.
, the variation of word recall scores appears to be when the color is changed.
C.
, the variation of word recall scores appears to be when the color is changed.
D.
, the variation of word recall scores appears to be when the color is changed.
Answers: 1
Mathematics, 21.06.2019 14:40
What is the approximate circumference of the circle shown below?
Answers: 1
Mathematics, 21.06.2019 17:40
Im gonna fail 7th grade selective breeding 1. creates offspring which are genetically identical to the parent 2. is the process of breeding only organisms with desirable traits 3. involves the removal of the nucleus of a cell 4. combines traits from organisms of different species
Answers: 2
Mathematics, 21.06.2019 17:40
Find the value of ax 4 ; a = 2, x = 1. select one: a. 2 b. 4 c. 1 d. 8
Answers: 2
Mathematics, 21.06.2019 18:40
What value of x is in the solution set of 4x – 12 s 16 + 8x?
Answers: 3
Words were displayed on a computer screen with background colors of red and blue. Results from score...
Mathematics, 21.05.2020 04:09
Mathematics, 21.05.2020 04:09
History, 21.05.2020 04:09
Mathematics, 21.05.2020 04:09
Chemistry, 21.05.2020 04:09
Mathematics, 21.05.2020 04:09
Mathematics, 21.05.2020 04:09
Mathematics, 21.05.2020 04:09
Mathematics, 21.05.2020 04:09
Mathematics, 21.05.2020 04:09
Mathematics, 21.05.2020 04:09
History, 21.05.2020 04:09