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Using Non-parametric test, whether there is significant difference in the motor coordination skills.
Assume that each of the following studies cannot be analyzed using a parametric procedure. For each of the following studies, indicate the appropriate nonparametric procedure, and explain why you chose it.
One group of mothers has played classical music for their babies every day for 6 months while another group of mothers has not. The babies are tested to determine if there is a significant difference in the motor coordination skills of these two groups.
The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals:
An aptitude test has a mean of 220 and standard deviation of 10. find the corresponding z score for:
Does the data prove a significant difference in mean times?
Would you expect the mean absolute percentage error to be more than or less than 0.25? Describe.
The following table shows the number of miles driven in each trial.
If random sample of thirty six customer transactions points out that sample mean withdrawal amount is $172, is there evidence to think that population mean withdrawal amount is no longer $160? Determine the mean of data above?
It was reported that 20 readers responded and 87% said "no" while 13% said "yes." Recognize 4 major flaws in this survey.
Using goodness-of-fit test and.01 level of significance, find out whether accidents are evenly distributed all through the day. Write a short description of your conclusion.
what is the probability that at least 8 of the words on the test are words that the student knows?
Develop a probability distribution for the number of students in the sample who watch soap operas.
A company makes molded plastic toys. They study the plastic injection process into the molds. A common cause of variation and What are the control limits for an chart
A university found that 20 percent of its students withdraw without completing the introductory statistics. Assume that 20 students registered for the course.
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