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percent of the homes with T.V. sets served by cable T.V. If a random sample of 6 is taken from these homes find the probability distribution of x where x is the number of T.V. homes in the sample having cable T.V. What is the probability that at least 2 T.V. homes in the sample are served by cable?
At the .10 significance level you will test to determine if there has been an increase in selling time. Assuming we are using a t test what will be the critical value"?
Two t-curves have degrees of freedom 12 and 20, respectively. Which one more closely resembles the standard normal curve? Explain your answer.
Perform an appropriate hypothesis test, showing the necessary calculations and/or explaining the process used to obtain the results.
On opening day one season, 10 major league baseball games were played and they lasted the following numbers of minutes. Find the sample variance.
In a study, the carapace lengths (in mm) of Thenus lobster caught near Singapore measured: 78,66,65,63,60,60,58,56,52 and 50 ( the population data is approximately normal).
What distinguishes regression from ANOVA? What are the assumptions and limitations of each, and when should one be used in place of the other
A recent survey by the insurance company showed the following probabilities for the number of bedrooms in each insured home. Find the standard deviation for the distribution.
Determine the least squares equation. According to this information, what are the estimated sales for 2005? Listed below is the net sales in $ million for Home Depot, Inc. and its subsidiaries from 1993 to 2002.
What is the appropriate set of hypotheses to test such that a possible outcome of the test would indicate;
Compute the expected return and standard deviation of each of the two securities. Assume Miss Maple invested $2,500 in Security A and $3,500 in security B. Calculate the expected return and standard deviation for her portfolio.
Scores on certain nationwide college entrance examination follow normal distribution with mean of 500 and a standard deviation of 100. Determine the probability that student will score?
Compute the relative dispersion of each group using the coefficient of variation. Comment on the difference in relative dispersion.
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