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Question: Twenty graduate students in business were asked how many credit hours they were taking in the current quarter. Their responses are shown as follows:
a. Determine the mean, median, and mode for this sample of data. Write a sentence explaining what each means.
b. It has been suggested that graduate students in business take fewer credits per quarter than the typical graduate student at this university. The mean for all graduate students is 9.1 credit hours per quarter, and the data are normally distributed. Set up the appropriate null and alternative hypotheses, and determine whether the null hypothesis can be rejected at a 95 percent confidence level.
how does the t distribution compare with normal distribution? how does this difffference affect the size of confidence
Let R be a principal ideal domain and let M be a torsion R-module. Prove that M is irreducible iff M=Rm for any nonzero element m in M where the annihilator of m is a nonzero prime ideal (p)
What aspect of this distribution makes it difficult to summarize, or to discuss, center and spread?- What would you suggest doing with these data if we want to understand them better?
Distinguish between the null hypothesis and the alternative hypothesis, giving the symbol for each.
Do the sales prices of houses in a given community vary systematically with their sizes (as measured in square feet)?
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots. A partial ANOVA table
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Indicate with a yes or no whether a particular type of reliability is affected by a particular source of error.
Write an example of a confidence statement, with supporting sketches, that illustrates each of the following situations: (i) large confidence interval but large degree of confidence and (ii) small confidence interval but small degree of confidence..
If the player does not win or lose on the first toss, he tosses the dice repeatedly until he obtains either his point or a 7. He wins if he tosses his point before tossing a 7 and loses if he tosses a 7 before his point. What is the probability th..
a researcher is comparing 6 groups to test if they have the same means. there are 62 data values altogether. the
Based on your SPSS analysis, report the results using correct APA format. Include results for post hoc tests where appropriate. Your report should include the following:
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