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The mean number of past relationship partners for the population of people between the ages of 18 and 26 years living in the U.S.A is µ = 4.8. The standard deviation is = 2.4. A psychologist predicts that the mean number of past relationship partners for introverts will be significantly different from the mean of the population. The mean number of past relationship partners for a sample of 55 introverts aged 18 to 26 years is M = 3.2.

Complete step 3 of the hypothesis testing procedure and calculate *z *or *t*, whichever is appropriate for these data. Round to the nearest hundredths place. If your calculated z or t is not identical to one of the values below, but within plus or minus 0.16 of an answer below, assume it's a rounding error and select the answer that is closest to your calculated value. Ignore the minus sign if your calculated *z* or *t* is negative.

Group of answer choices

4.95

3.95

0.58

6.22

the correct answer is not listed, even when taking into consideration a rounding error of + or - 0.16

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Answered by Ahmed554421 on coursehero.com

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