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A local car dealer is attempting to determine which premium will draw the most visitors to its showroom. An individual who visits the showroom and takes a test ride is given a premium with no obligation. The dealer chose 4 premiums and offered each for one week. The results are as follows:
1-4ft metal stepladder-425
2-$50 savings bond-610
3-dinner for 4 at a local steakhouse-510
4-six pink flamingos plus an outdoor thermometer-705
1: Identify the research question and generate the approriate hypothesis.
2: Find the appropriate statistical test, compute the test statistics and draw conclusions.
As a sample size approaches infinity, how does the student's t distribution compare to the normal z distribution? When a researcher draws a sample from a normal distribution, what can one conclude about the sample distribution? Explain.
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