A psychologist is examining the influence of an older sibling in the development of social skills. A sample of three-year old children isobtained. Half the children had no siblings and the others had at least 1 older sibling who is within 5 years of the child's age. Thepsychologist records a social skills score for each child and obtains the following data.No siblingOlder siblingn= 10n= 17M= 17M= 232- 50.741= 48.578a. Do these data indicate that having an older sibling has a significant effect on the development of social skills? Test at the ,05 level.b. Compute dc. Give an APA formatted summary of your findings.

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Answered: A psychologist is examining the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Dataset: NES. Variables: spend8, nesw.) The NES dataset contains spend8, which records the number of government policy areas where respondents think spending should be increased. Scores range from 0 (the respondent does not want to increase spending on any of the policies) to 8 (the respondent wants to increase spending on all eight policies). The NES, of course, polls a random sample of U.S. adults. In this exercise you will analyze spend8 using the Analyze ▶ Compare Means ▶ One-Sample T Test procedure. You then will draw inferences about the population mean. Make sure you weight observations using the nesw variable so your results are nationally representative. A. The spend8 variable has a sample mean of ______.
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