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What is the theory underlying ANOVA? Why is it important? What are the differences between a two sample t-test and ANOVA hypothesis testing?Why do we use nonparametric tests?
Describe a psychological research situation or scenario that would use a nonparametric test. Why would the nonparametric test be used?
Use a 0.01 significance level to test the claim that most people believe that the Loch Ness monster exists. How is the conclusion affected by the fact that Internet users who saw the question could decide whether to respond.
A random sample of 48 managers of large hotels has mean X‾= 5.91. The null hypothesis for the researcher's test is?
Find out point estimate and 95% confidence interval for mean family dental expenses of all employees of company.
Produce a printout of the frequency tables, showing the total of both frequencies.
Conduct the following test using 95% level of confidence.
A seven year old study reported that women whose mothers used the drug DES during pregnancy were twice as likely to develop tissue abnormalities that might lead to cancer as women whose mothers did not take the the drug.
What is the minimum-cost order quantity for the shoes? What are the annual savings of your inventory policy over the policy currently being used by Keith?
Construct a 90% confidence interval for the proportion of all kernels that would not pop.
What is the probability that 30% or fewer male employees will indicate that they have to pick up the slack for mom's working flextime ?
Operations manager thinks that only 10% of room service orders must take longer than 25 minutes if hotel has good customer service. Does hotel room service fulfil this goal?
Marentette and El-Masri (2011) used logistic regression to identify predictors of obtaining seasonal influenza vaccination among hospital-based nurses in Canada. Their results are shown in table 1:
Use a 95% confidence interval for multiple comparisons. Show your calculation by hand between Monday and Tuesday. Match your answer with Minitab output. Attach Minitab output.
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