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Choose a quantitative variable. Measure it on two different samples of 10, drawn from two different populations. For example, you might measure the number of cups of coffee consumed daily by men vs women. Provide a description of of the data selected, and the two different populations you chose.
Record the data, and for EACH sample, find the mean and standard deviation and the five-number summary. Compare your two samples using boxplots or histograms.
Summarize your results in a paragraph, including a description of how you collected your data and your interpretation of the results. Does it appear that the two populations are similar, or different?
In how many different ways can the bids be opened?- What is the probability that the lowest bid will be opened last?
A farm brings 15 tons of watermelon to market. Find a 90% confidence interval for the population mean cash value of this crop. What is the margin of error?
For the variables, HOME, ARREST, TENURE and SIBS, identify the correct measure of dispersion and explain why it is appropriate. Locate the values for the measure on the tables and report them for each variable
1.i wish to find a 95 confidence interval for the mean number of times men change channels with a remote control during
What is the mean weight of my ancient gold coins? How do you consider this collection, a population or a sample? Why? What is the variance (σ2) and standard deviation (σ) in weight of my coin collection? (Remember, depending on whether you consider..
In terms of measures of association, how is Lambda different from the other measures used for nominal level data?
A normal population has a mean of 75 and a standard deviation of 5. You select a sample of 40. Compute the probability that the sample mean is Between 74 and 76.
Which of the two CDs is a better investment if the actual inflation rate for the year turns out to be 2 .2%?
The results of the October 3rd vote on the Emergency Stabilization Act of 2008 are shown in the table below.
A die is rolled and a coin is tossed, find the probability that the die shows an odd number and coin shows a head.
Construct a 90% confidence interval estimate of the proportion of adults believing in global warming. Show all work. Just the answer, without supporting work.
The accompanying table shows proportions of computer salespeople classified according to marital status and whether they left their jobs or stayed over a period of 1 year
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