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Parents
The table shows the heights (in inches) of a random sample of students and their parent of the same gender.
Test the hypothesis that the mean for the students is more than the mean for the parents, at the 0.05 level. Assume the data are Normal.
a. Use the paired t-test that is appropriate.
b. Use the two-sample t-test, even though it is not appropriate.
c. Compare the results. The numerator of both t-values is the difference in sample means, which is 1.12 inches.
What must be causing the different t-values if the numerators are the same?
The manager of the Gander Mountain store in Frogtown, IL, believes that his prices for ammunition are lower than the prices of his primary competitor in the hunting equipment market, Cabela's.
Calculate the average of deposits per bank for FDIC- inured institutions during both time periods and describe the relationship between the two averages. Provide a reason for the difference.
There are n types of toys, which you are collecting one by one. Each time you buy a toy, it is randomly determined which type it has, with equal probabilities.
a basketball team has three pure centers four pure forwards four pure guards and one swing- man who can play either
Proponents and critics of this legislation have looked at the number of traffic fatalities on major U.S. highways (e.g., I-90, I-65, I-75) for the years preceding and following this legislation. Sonny examined the traffic fatalities on each of the..
Read the article: "The Security Tools You Need" at www.pcworld.com/downloads/collection/collid,1525/fi les.html.
Explain which data techniques you are most familiar with/have used: in a previously done project that involved the collection and analysis of data and explain why the examination of collected data is so important.
What is the 98% confidence interval for the true proportion of male office workers who work more than 50 hours per week?
In this forum post provide your results also elucidate what they mean in context of your favorite channel. To find 95 percent confidence interval for given data.
Use the GSS-08 dataset on the companion website. The variable degree indicates the highest educational degree achieved by a respondent.
Write the null and alternative hypotheses. Identify which is the claim. A light bulb manufacturer claims that the mean life of a certain type of light bulb is less than 775 hours.
Fertilization of bromeliads, continued. Repeat the analysis of Exercise 29.42 using change in the number of leaves as the response variable.
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