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State two research hypotheses that can be tested using a one-tailed t test, and discuss why a one-tailed t test would be appropriate for those hypotheses.
State two research hypotheses that can be tested using a two-tailed t test, and discuss why a two-tailed t test would be appropriate for those hypotheses
In a distribution of sentence lengths in months like the following: 6, 12, 10, 18, 24, 360; which statistic would a researcher not want to report?
A business researcher uses two-way ANOVA in a report for a client. The researcher does not check the assumptions of using the technique.
Bruce Kuhlman, owner of Kuhlman Farms, wishes to use brand of fertilizer which will produce maximum yield per acre of wheat. Mr. Kuhlman can select from four different commercial brands. Write down the hypotheses?
find the test statistic f to test the claim that the populations have the same mean.brand 1brand 2brand
On a scale from 0 to 100, the mean level of economic development among the countries in the world is 65 and the standard deviation is 10. What proportion of countries in the world have economic development scores above 80?
q1. two opponents a and b are to play a game which consists of two indenotpendent rounds. to win the game a player must
Research on new juvenile delinquents revealed that 38% of them committed another crime. What is the probability that 40 or fewer of the delinquents will commit another crime?
The researcher will then compare the scores for the 2 treatments. If there is a difference between the 2 groups of scores, briefly explain how the difference may have been caused by the treatment.
you have obtained the number of years of education from one random sample of 38 police officers from city a and the
Consider the following data for two independent random samples taken from two normal populations. What is the 90% confidence interval estimate of the difference between the two population means?
Apply the problem discovery sample size formula to several finite populations. How should I integrate the finite population correction factor (FPC) into this formula?
Random sample of 36 theaters resulted in mean of $7.80. Population standard deviation is $1.00. Determine conclusion can be made at 10% significance level? How about 5% significance level?
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