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## PUBH 6033â??Week 5 Question 1 Hands on SPSS! Instructions For this Question, review this weekâ??

PUBH 6033âWeek 5 Assignment 1
Hands
on SPSS!

Instructions
For this
Assignment, review this weekâs Learning Resources, including the 5 step
approach to hypothesis testing document. Read the research scenario, below, and
then answer the questions related to the steps that must be followed to make
the appropriate decision as to reject or fail to reject the null hypothesis.

Submit this
Application Assignment by Day 7.
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Research Scenario

IQ
scores from the general population form a normal distribution with am = 100 ands = 15. However, data indicate that childrenâs
intelligence may be negatively affected if their mothers have German measles
during pregnancy. Using hospital
records, a researcher obtained a sample of n = 25 children whose mothers all
had German measles during their pregnancies.
The average IQ for this sample wasx?= 96.4. Do
these data indicate that German measles have a significant negative effect on
IQ? Test withalpha=.05.

Note
Âµ = population mean
x? =
sample mean
s = standard deviation

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Note:
Each response is worth 6 points

Step 1: Set up your hypothesis and determine
the level of significance
State
the null hypothesis
1.
In written format

2.
In mathematical format
State the alternative
hypothesis
1.
In written format

2.
In mathematical format

-Continued below-
Determine the Level of
Significance

3.
Based on information in the scenario, what is the level of significance
to be used?

Step 2: Select the appropriate test statistic

4.
The appropriate test statistic for the above scenario is the one-sample
z-test. What values are compared in a one-sample z-test?

Step 3: Set up the decision rule

5.
Based on thelevel of
significance you set in step 1 and whether your alternative hypothesis is
directional or non-directional, what is your decision rule(in relation to the z-statistic)?

Step 4: Compute the test statistic

6.
Calculate the z-statistic (must show your work).

Step 5: Conclusion

7.
Do you
reject or fail to reject the null hypothesis?