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We rolled two six-sided dice, one with sides 1, 2, 2, 3, 3, 4 and the other with sides 1, 3, 4, 5, 6, 8. What is the distribution of the sum?
1.one characteristic of billiard balls is their elasticity - the bounce they get when striking one another. a
Find the 95% confidence interval of the mean score for all 50 golfers. Find the 95% confidence interval of the mean score for all golfers if this is a sample of 80 golfers instead of a sample of 50.
Assuming that n = 6 for both samples, calculate each of the sample variances, then calculate the pooled variance. Because the samples are the same size, you should find that the pooled variance is exactly halfway between the two sample variances.
The quality control manager at a lightbulb factory needs to determine whether the mean life of a large shipment of lightbulbs is equal to the specified value of 375 hours.
question tastes in musicmusical styles other than rock and pop are becoming more popular. a survey of college
What is the standard deviation of expected returns for Stock X? For Stock Y?
Identify the point estimate of the average number of available hotel rooms in this lesson from each sample. Construct and Interpret a 95% confidence level for the true mean number of available hotel rooms, based on the point estimate of each sampl..
A manager of a small store wanted to discourage shoplifters by putting signs around the store saying "Shoplifting is a crime!" However, he wanted to make sure this would not result in customers buying less.
The national median sales price for new single-family homes is $230,000 (The Associated Press, March 25, 2006). Assume that the following data were obtained for sales of existing single-family homes in Houston and Boston.
The American Automobile Association checks the prices of gasoline before many holiday weekends.
the lifetimes in years of a certain kind of electronic component is a random variable having probability density
there are 2r 2r is less than or equal to n gloves randomly chosen from n distinct pairs of gloves i.e. 2n gloves in
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