Chapter 8, Problem 17P

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

A sample of *n =* 40 is selected from a normal population with

**a.** If the treatment effect is evaluated with a two-tailed hypothesis test using

**b.** What is the power of the test if the researcher uses a one-tailed test with

**a.**

To determine

**To find:** The power of the test if the treatment effect is evaluated with a two-tailed hypothesis test using

Explanation

**Given info:**

**,**
**,**

**Calculation:**

*Two tailed test*

In case when treatment has no effect and the population mean is

When treatment adds to each person’s score by 4 msec, the sample mean are centred around

Both distribution have standard error

At

For the distribution on the left hand side, the critical boundary of

**b.**

To determine

**To find:** The power of the test if the treatment effect is evaluated with a one-tailed hypothesis test using

Sect-8.1 P-1LCSect-8.1 P-2LCSect-8.1 P-3LCSect-8.1 P-1LCASect-8.1 P-2LCASect-8.1 P-3LCASect-8.2 P-1LCSect-8.2 P-2LCSect-8.2 P-3LCSect-8.2 P-4LC

Sect-8.2 P-5LCSect-8.3 P-1LCSect-8.3 P-2LCSect-8.3 P-3LCSect-8.3 P-4LCSect-8.3 P-5LCSect-8.4 P-1LCSect-8.4 P-2LCSect-8.4 P-3LCSect-8.5 P-1LCSect-8.5 P-2LCSect-8.5 P-3LCSect-8.6 P-1LCSect-8.6 P-2LCSect-8.6 P-3LCSect-8.6 P-4LCCh-8 P-1PCh-8 P-2PCh-8 P-3PCh-8 P-4PCh-8 P-5PCh-8 P-6PCh-8 P-7PCh-8 P-8PCh-8 P-9PCh-8 P-10PCh-8 P-11PCh-8 P-12PCh-8 P-13PCh-8 P-14PCh-8 P-15PCh-8 P-16PCh-8 P-17PCh-8 P-18PCh-8 P-19PCh-8 P-20PCh-8 P-21PCh-8 P-1RECh-8 P-2RECh-8 P-3RE

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