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In this part of Activity #7, you will perform the non-parametric version of the tests you used in Activity 4. In each case, assume that you opted to use the non-parametric equivalent rather than the parametric test. Using the data files from earlier activities, complete the following tests and paste your results into a Word document:
1. Activity 6, Part A: non-parametric version of the dependent t test
2. Activity 6, Part B: non-parametric version of the independent t test
3. Activity 6, Part C: non-parametric version of the single factor ANOVA
ACME Lumber Company selects a random sample of 36 customers. Customers are rated on their annual spend at ACME Lumber Stores.
Add line-of-best fit (trend line/linear regression line) to your scatterplot. Write down the equation of the trend line below.
Calculate the 90% confidence interval about μ if sample size, n, is 55. How does increasing sample size affect margin of error, E?
Is this correlation statistically significant? He also found the regression coefficient to be -1.66. Is this regression coefficient statistically significant? Explain why or why not for each.
Suppose that four American adults are asked if they ate at table-service restaurants last week. What is the probability that all of them say yes?
Data editing deals with detecting and correcting illogical, inconsistent, or illegal data in the information returned by the participants of the study.Explain the differences among illogical, inconsistent, and illegal data; and recommend steps to min..
(a) What is the relative frequency (i.e., proportion) of observations falling in the 0.260-0.280 interval? (Give your answer to four decimal places.) (b) What is the shape of the data distribution?
Write a Results section in current APA style describing the outcome - difference in satisfaction ratings in an assisted living facility between residents who had a pet with them vs. those who did not have a pet.
If he finds differences, then he may realize that, 1) he will need to evaluate his course ethnic sensitivity,
Any value which is based on having measured a sample is called:
Why might the assumption of independence be violated? (b) Why might a driver be tempted not to use a seat belt "just on this trip"?
Find out the following: Mean swipe rate, Standard deviation of the swipe rate.
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