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The author drilled a hole in a die and filled it with a lead weight, then proceeded to roll it 180 times. (Yes, the author has too much free time.) The results are given in the frequency distribution in the margin. Construct the frequency distribution for the outcomes that you would expect from a die that is perfectly fair and unbiased. Does the loaded die appear to differ significantly from a fair die that has not been "loaded?"
A street performer approaches you to make a bet. He shows you three cards: one that is blue on both sides, one that is orange on both sides, and one that is blue on one side and orange on the other.
List one unclear concept regarding regression and provide an example from your personal or work life where regression could be used to show a relationship between two variables.
Data are recorded on effects of each drug. Is research division by using dependent or independent samples? Explain why?
Describe what is measured by the estimated standard error in the bottom of the independent-measures t statistics.
A wire of length 50 feet is attached to the ground and to the top of an antenna. The height of the antenna is 10 feet larger than the distance from the base of the antenna to the point where the wire is attached to the ground.
In a Sgallop poll of 1012 randomly selected adults, 9% said cloning of humans should be allowed. Use a .05 significance level to the test claim that less than 10% of all adults said that cloning should be allowed.
Use the Kolmogorov-Smirnov test to discover whether the distribution of location of accidents is uniformly distributed for the month of September
Results of study are summarized below. Use a 5% level of significance and test claim that opinion is independent of brand.
Compute β-error of test in part (a) if true difference in mean burning rate is 2.5 centimeters per second.
Construct a 95 percent confidence interval for the true mean.
We can think of this as the value of mew that maximizes f(y), the probability that our observed value of y occurs.
Critically illustrate out the range? What is the arithmetic mean income? What is the population variance?
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