Maurice Tutor

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Category > Management Posted 07 Jan 2018 My Price 6.00

significance test

7.69    What is wrong? In each of the following situations explain what is wrong and why.

(a)  A researcher wants to test H0: x1 = x2 versus the two-sided alternative Ha: x1 /= x2.

 

(b)   A study recorded the IQ scores of 50 college freshmen. The scores of the 24 males in the study were compared with the scores of all 50 freshmen using the two-sample methods of this section.

(c)   A two-sample t statistic gave a P-value of 0.93. From this we can reject the null hypothesis with 90% confidence.

(d)   A researcher is interested in testing the one- sided alternative Ha: μ1 μ2. The significance test gave t = 2.25. Since the P-value for the two-sided

alternative is 0.04, he concluded that his P-value

was 0.02.

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Maurice Tutor
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Status NEW Posted 07 Jan 2018 08:01 PM My Price 6.00

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