Kids with cell phones: A marketing manager for a cell phone company claims that the percentage of children aged 8 - 12 who have cell phones differs from 50% . In a survey of 828 children aged 8 - 12 by a national consumers group, 422 of them had cell phones. Can you conclude that the manager's claim is true? Use the =α0.01 level of significance and the P -value method and Excel. Part 1 of 5 State the appropriate null and alternate hypotheses. H0 : =p.50 H1 : ≠p.50 This hypothesis test is a ▼two-tailed test. Alternate Answer: H0 : =p0.5 H1 : ≠p0.5 This hypothesis test is a two-tailed test. Part 2 of 5 Compute the test statistic. Do not round intermediate steps. Round the answer to two decimal places. =z 0.56 Part: 2 / 5 2 of 5 Parts Complete Part 3 of 5 Compute the P -value. Round the answer to four decimal places. P -value =
Kids with cell phones: A marketing manager for a cell phone company claims that the percentage of children aged 8 - 12 who have cell phones differs from 50% . In a survey of 828 children aged 8 - 12 by a national consumers group, 422 of them had cell phones. Can you conclude that the manager's claim is true? Use the =α0.01 level of significance and the P -value method and Excel. Part 1 of 5 State the appropriate null and alternate hypotheses. H0 : =p.50 H1 : ≠p.50 This hypothesis test is a ▼two-tailed test. Alternate Answer: H0 : =p0.5 H1 : ≠p0.5 This hypothesis test is a two-tailed test. Part 2 of 5 Compute the test statistic. Do not round intermediate steps. Round the answer to two decimal places. =z 0.56 Part: 2 / 5 2 of 5 Parts Complete Part 3 of 5 Compute the P -value. Round the answer to four decimal places. P -value =
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 11PPS
Related questions
Question
Kids with cell phones: A marketing manager for a cell phone company claims that the percentage of children aged
8
-
12
who have cell phones differs from
50%
. In a survey of
828
children aged
8
-
12
by a national consumers group,
422
of them had cell phones. Can you conclude that the manager's claim is true? Use the
=α0.01
level of significance and the
P
-value method and Excel.
Part 1 of 5
State the appropriate null and alternate hypotheses.
H0
=p.50
H1
≠p.50
Alternate Answer:
H0
:
=p0.5
H1
:
≠p0.5
This hypothesis test is a two-tailed test.
Part 2 of 5
Compute the test statistic. Do not round intermediate steps. Round the answer to two decimal places.
=z
0.56
Part: 2 / 5
2 of 5 Parts Complete
Part 3 of 5
Compute the
P
-value. Round the answer to four decimal places.
|
P
=
|
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