Scores on a certain "IQ" test for 18-25 year olds are normally distributed. A researcher believes that the average IQ score for students at a certain NJ college is less than 109 points, and so wants to test this hypothesis. The researcher obtain a SRS of 55 student IQ scores from school records and found the mean of the 55 results was 107 with a sample standard deviation of 20. The level of significance (alpha) used for this problem is 0.05. a) State the pair of Hypothesis using proper notation and mathematical symbols for testing the Rowan student's belief as stated above. a Null Alternative 109 X = \09 E 107 Null b C Null Alternative Alternative IX IX

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Scores on a certain "IQ" test for 18-25 year olds are normally distributed. A researcher believes that the
average IQ score for students at a certain NJ college is less than 109 points, and so wants to test this
hypothesis. The researcher obtain a SRS of 55 student IQ scores from school records and found the
mean of the 55 results was 107 with a sample standard deviation of 20. The level of significance (alpha)
used for this problem is 0.05.
a) State the pair of Hypothesis using proper notation and mathematical symbols for testing the Rowan
student's belief as stated above..
E 109
109
H = l07
Null
C Null
a Null
|Alternative
Alternative
Alternative
C
a
b
|| v
IX IX
Transcribed Image Text:Scores on a certain "IQ" test for 18-25 year olds are normally distributed. A researcher believes that the average IQ score for students at a certain NJ college is less than 109 points, and so wants to test this hypothesis. The researcher obtain a SRS of 55 student IQ scores from school records and found the mean of the 55 results was 107 with a sample standard deviation of 20. The level of significance (alpha) used for this problem is 0.05. a) State the pair of Hypothesis using proper notation and mathematical symbols for testing the Rowan student's belief as stated above.. E 109 109 H = l07 Null C Null a Null |Alternative Alternative Alternative C a b || v IX IX
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