Conduct a full hypothesis testing on the following problem and then choose among the options what best fits the items being asked:

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
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Conduct a full hypothesis testing on the
following problem and then choose
among the options what best fits the
items being asked:
To test a claim that eating fish makes
one smarter, a random sample of 12
persons take a fish oil supplement for
one year and then are given an IQ
test. Here are the results:
116 111
101
120 99 94
108 115 107 91 110 92
Is there sufficient evidence to
support the claim if the standard IQ
on record is 100? Use 5%
significance level.
Note: Round off the mean and SD in
this given to 1 decimal place only,
and the test statistic value to 3
decimal places. If two-tailed test is to
be applied, the given critical values
as options are considered the
absolute values.
Transcribed Image Text:Conduct a full hypothesis testing on the following problem and then choose among the options what best fits the items being asked: To test a claim that eating fish makes one smarter, a random sample of 12 persons take a fish oil supplement for one year and then are given an IQ test. Here are the results: 116 111 101 120 99 94 108 115 107 91 110 92 Is there sufficient evidence to support the claim if the standard IQ on record is 100? Use 5% significance level. Note: Round off the mean and SD in this given to 1 decimal place only, and the test statistic value to 3 decimal places. If two-tailed test is to be applied, the given critical values as options are considered the absolute values.
Conduct a full hypothesis testing on the
following problem and then choose
among the options what best fits the
items being asked:
To test a claim that eating fish makes
one smarter, a random sample of 12
persons take a fish oil supplement for
one year and then are given an IQ
test. Here are the results:
116 111
101
120 99 94
108 115 107 91 110 92
Is there sufficient evidence to
support the claim if the standard IQ
on record is 100? Use 5%
significance level.
Note: Round off the mean and SD in
this given to 1 decimal place only,
and the test statistic value to 3
decimal places. If two-tailed test is to
be applied, the given critical values
as options are considered the
absolute values.
Transcribed Image Text:Conduct a full hypothesis testing on the following problem and then choose among the options what best fits the items being asked: To test a claim that eating fish makes one smarter, a random sample of 12 persons take a fish oil supplement for one year and then are given an IQ test. Here are the results: 116 111 101 120 99 94 108 115 107 91 110 92 Is there sufficient evidence to support the claim if the standard IQ on record is 100? Use 5% significance level. Note: Round off the mean and SD in this given to 1 decimal place only, and the test statistic value to 3 decimal places. If two-tailed test is to be applied, the given critical values as options are considered the absolute values.
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