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A student drilled a hole in a die, loaded it with lead weight, and then rolled the die 200 times. The observed frequencies for the outcomes of 1, 2, 3, 4, 5, and 6 are respectively 27, 31, 42, 40, 28, and 32. Would you be able to conduct a goodness-of-fit test for this study? Explain which requirements are met and which are not.
Construct a 99% confidence interval on the difference of the average ages for the viewers of the two TV programs. How can you interpret this interval?
a^2 + b^2=c^2 + d^2 where a,b,c,d are real numbers(describe equivalence cl). For a pair of fractions a/b and c/d define a/b ~ c/d if ab=cd(same here)
If were interested in studying obesity in a small sample size of 10 adult men by looking at their body weights and heights, would you say that trimming the mean is a good idea? What are the advantages of trimming the mean in this situation? What a..
probability based on normal distribution.1.determine the area under the standard normal curve that lies to the left of
Determine the coefficient of correlation and the coefficient of determination. please show your calculations. Interpret the results.
One of the criteria in their evaluation was the baggage capacity of the boat, evaluated using a 4-point rating scale from 1 to 4.
Do these scores suggest that the different foods are differentially preferred by people in general? (Use the .05 significance level.)
The analysis needs to be re-run adding the error into the regression sum of squares.
The New York Times recently reported that 60% of college entrants into elite public and private colleges in the U.S. have parents that earn over $150,000/yr.
Use critical values and the previously given sample information to test the hypotheses you set up in part α by setting α equal to .10, .05, .01, and .001. How much evidence is there that the manufacturer's claim is false?
The manufacturer would like to establish Inventory levels such that there is only a 5% chance of running out of stock. Where the Manufacturer should set the inventory levels?
Joe Mauer of the Minnesota Twins had the highest batting average in the 2009 Major League Baseball season. His average was .461. So assume the probability of getting a hit is .461 for each time he batted. In a particular game, assume he batted fou..
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