Part 1 of 7 (a) Explain why it is necessary to check that the population is approximately normal before performing a hypothesis test. It is necessary to check that the population is approximately normal because the sample size is small 30 Part 2 of 7 (b) Following is a dotplot of the data. Is it reasonable to assume that the population is approximately normal? It is Part 3 of 7 6 Part 4 of 7 10 (c) State the appropriate null and alternate hypotheses. H 15 Hu=15 This hypothesis test is a two-tailed Part 5 of 7 ▾ reasonable to assume that the population is approximately normal. 18 test. D C=D X H (d) Compute the value of the test statistic. Round the answer to two decimal places. 2= 13 5 (e) Compute the P-value. Round the answer to four decimal places. P-value = 54
Part 1 of 7 (a) Explain why it is necessary to check that the population is approximately normal before performing a hypothesis test. It is necessary to check that the population is approximately normal because the sample size is small 30 Part 2 of 7 (b) Following is a dotplot of the data. Is it reasonable to assume that the population is approximately normal? It is Part 3 of 7 6 Part 4 of 7 10 (c) State the appropriate null and alternate hypotheses. H 15 Hu=15 This hypothesis test is a two-tailed Part 5 of 7 ▾ reasonable to assume that the population is approximately normal. 18 test. D C=D X H (d) Compute the value of the test statistic. Round the answer to two decimal places. 2= 13 5 (e) Compute the P-value. Round the answer to four decimal places. P-value = 54
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![Part 1 of 7
(a) Explain why it is necessary to check that the population is approximately normal before performing a hypothesis test.
It is necessary to check that the population is approximately normal because the sample size is small ≤30
X
Part 2 of 7
It is
(b) Following is a dotplot of the data. Is it reasonable to assume that the population is approximately normal?
Part 3 of 7
Ś
Part 4 of 7
(c) State the appropriate null and alternate hypotheses.
H
= 15
H
= 15
This hypothesis test is a two-tailed
▾ reasonable to assume that the population is approximately normal.
Part 5 of 7
.
test.
x
D<0 >0 0-0
5
OD μ
(d) Compute the value of the test statistic. Round the answer to two decimal places.
z = 13
X
(e) Compute the P-value. Round the answer to four decimal places.
P-value = 54
$
X
$
Expañol](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8f283cfc-3082-4072-ac5d-2906bb7d4620%2Ffab04bbf-62fd-4de6-b335-9987851193e1%2Fyjc8bun_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Part 1 of 7
(a) Explain why it is necessary to check that the population is approximately normal before performing a hypothesis test.
It is necessary to check that the population is approximately normal because the sample size is small ≤30
X
Part 2 of 7
It is
(b) Following is a dotplot of the data. Is it reasonable to assume that the population is approximately normal?
Part 3 of 7
Ś
Part 4 of 7
(c) State the appropriate null and alternate hypotheses.
H
= 15
H
= 15
This hypothesis test is a two-tailed
▾ reasonable to assume that the population is approximately normal.
Part 5 of 7
.
test.
x
D<0 >0 0-0
5
OD μ
(d) Compute the value of the test statistic. Round the answer to two decimal places.
z = 13
X
(e) Compute the P-value. Round the answer to four decimal places.
P-value = 54
$
X
$
Expañol
![Part 6 of 7
(f) Determine whether to reject H. Use the a=0.10 level of significance.
Do not reject the null hypothesis H
Part: 6/7
Part 7 of 7
(g) State a conclusion.
There is not
enough evidence to conclude that the mean lead amount is less than 15 micrograms per liter.
X](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8f283cfc-3082-4072-ac5d-2906bb7d4620%2Ffab04bbf-62fd-4de6-b335-9987851193e1%2Fzjf1ko9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Part 6 of 7
(f) Determine whether to reject H. Use the a=0.10 level of significance.
Do not reject the null hypothesis H
Part: 6/7
Part 7 of 7
(g) State a conclusion.
There is not
enough evidence to conclude that the mean lead amount is less than 15 micrograms per liter.
X
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