Using SPSS 2. A report indicated that the average family size was 3.18. A school district...
Using SPSS
2. A report indicated that the average family size was 3.18. A school district took a random sample of their families and came up with the data listed below. Is there a significant difference in this school district’s family size compared to the reported average?
5 6 5 4 3 2 5 3
4 2 4 7 3 4 6 5
4 2 3 2 3 2 5 3
a. State the null and alternate (research) hypotheses in words.
b. State the null and alternate (research) hypotheses using symbolism.
c. What test should be run to test the hypothesis? (Include a copy of your printout of the test results).
d. Give the p-value that is being compared to .05 to test your hypothesis.
e. State whether you accept (keep) or reject the null hypotheses and what this means about the study.
f. Write your findings using symbolism.
Homework Answers
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Using SPSS
2. A report indicated that the average family size was 3.18. A
school district...
1. state the hypothesis and identify the claim with the correct hypothesis. Also one or two...
1. state the hypothesis and identify the claim with the correct
hypothesis. Also one or two tailed test?
2. Compute the test value
3. Find the P-value
4. Make the decision to reject or not reject the null
hypothesis
5. Summarize the results
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hypothesis. Also one or two tailed test?
2. Compute the test value
3. Find the P-value
4. Make the decision to reject or not reject the null
hypothesis
5. Summarize the results
Question 7 of 10 (1 point) View problem in a pop-up The average family size was reported as 3.18. A random sample of families in a particular school district resulted in the following family sizes: 5 4...
A local school district recently implemented an experimental program to improve mathematical skills for a specific high risk population. They selected 15 students to be in the initial study. After 1 year, the students in the program took a national mathematic achievement test. Students in this high risk population score an average of 35 with a standard deviation of 6. The goal of the program is for students to increase performance. Assume the data is approximately normally distributed. The scores...
3) Suppose you are an educational researcher who wishes to examine the effect of a school district's class size on its student achievement. Specifically, you are interested in whether in the U.S., on average, school districts with smaller class sizes perform differently on test scores than school districts with larger class sizes. To test this, you have conducted two surveys. The first survey randomly sampled 238 school districts with small class sizes. This survey found a sample average test score...
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In a certain school district, it was observed that 31% of the students in the element schools were classified as only children (no siblings). However, in the special program for talented and gifted children, 134 out of 385 students are hildren. The school district administrators want to know if the proportion of only children in the special program is significantly different from the proportion for the school district. Test at the a=0.02 level of significance. What is the hypothesized population...
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