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The makers of a soft drink want to identify the average age of its consumers. A sample of 16 consumers is taken. The average age in the sample was 22.5 years with a standard deviation of 5 years.
1. Construct a 95% confidence level.2. Now do the same thing with 80% confidence level.
a. What is the probability that the sample mean will be more than $306.60?b. What is the probability that the sample mean will be less than $308?c. What is the probability that the sample mean will be between $302 and $308?
Management wishes to know how many casks of each wine to make to maximize total. profit. Prepare the linear programming model for this problem.
What is the required sample size if you need to estimate the number of workers in the United States who are highly satisfied with their job and you want the estimate to be within 2 percentage points of a 96% confidence interval.
What is the probability an applicant does not pass the test and is a sucessful manager?
What is the probability that the average IQ, from a random sample of 64 individuals, is greater than 102?
Solve the equation for x (by taking the logarithms of both sides): All the other exercises have x on the same side (left) so this one has thrown me.
Surveys have been widely used by politicians around the world as a way of monitoring the opinions of the electorate. Six months ago, a survey was undertaken to determine the degree of support for national party leader.
A newly married couple plans to have four children. Assume that boys and girls are equally likely each time the child is born. Determine the probability couple will have no more than 2 boys?
Select the level of significance, and determine critical, ZCR value.
An urn contains 8 balls identical in every respect except color. There are 4 blue balls, 3 red balls, and 1 white ball.
Evaluate this correlation. What does this correlation tell us about the relationship between these two instruments?
Sample data are reported for 50 employees of small companies, 75 employees of medium companies, and 100 employees of large companies.
A side effect of a certain anesthetic used in surgery is the hiccups, which occurs in about 10 percent of the cases. If three patients are scheduled for surgery today and are to be administered this anesthetic, compute the probability that:
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