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The random variable x represents the number of boys in a family of three children. Assuming that boys and girls are equally likely, find the mean and standard deviation for the random variable x.
Estimate the percentage who weigh more than 180 pounds? Assume that we want 96% confidence that the error is no more than 2 percentage points.
If we reandomly select 5 ball with replacement, what is the probability distribution of x-the number of red balls in the sample?
You are the owner of a small casino in Las Vegas. You want to reward high rollers who come to your casino. You want to give free accomodations to no more than 10% of your patrons. Suppose that the mean amount wagered by all patrons is $287 with a ..
In November 2009, 65% (0.65) of Americans favored the death penalty for a person convicted of murder. In November 2010, 1025 adult Americans were asked by the Gallup organization,
Using the 0.10 level of significance, is there evidence that the mean shopping time at the local supermarket is different from the claimed value of 22 minutes?
Find the sample space for the number of outcomes (you don't need to list the possible outcomes, just how many possible outcomes there are).
You will investigate four different scenarios of population growth also decline in this town. Graph the model as well as investigate it by four different growth models.
Briefly describe how the standard deviation influences the outcome of the hypothesis test. How does standard deviation influence measures of effect size?
Misses the dart board with probability 0:02, what is the probability that seven throws will result in no bull's-eyes, no triples, a double twice, and a complete miss once?
Give the Z- score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected
If the sports report begins at 11:10, what is the probability that he misses part of the report if he waits until grading is done before turning on the TV?
Develop null and alternative hypotheses to help the bank determine which option would provide the best incentive to consumers.
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