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Joining the museum. One of the museum s phone volunteers sets a personal goal of getting an average donation of at least $100 from the new members she enrolls during the membership drive.
If she gets 80 new members and they can be considered a random sample of all the museum s members, what is the probability that she can achieve her goal?
Heights of men on a baseball team have a bell-shaped distribution with a mean of 177cm and a standard deviation of 5cm. Using the empirical rule, what is the approximate percentage of the men between the following values?
a simple random sample of 60 households in city 1 is taken. in the sample there are 45 households that decorate their
The number of customers for a randomly selected week was collected. Should the vice president consider closing any of the stores based on daily patronage? Does a certain day of the week have any effect on the average number of customers
The dowser correctly identifies the contents of 12 out of 20 containers. Do you think this level of success is statistically significant? Explain.
A student's reaction to the instructor's statement that covariance analysis is inappropriate when the treatment regression lines do not have the same slope was as follows:
a large firm has 85 of its service calls made by a contractor and 10 of these calls result in customer complaints. the
A national survey found that 17% Of Australians consume milk with their breakfast. However, in Victoria, a large milk producer believes that more than 17% of Victorians consume milk with their breakfast. To test this idea, a marketing organisation ra..
A random sample of 1440 current job applicants results in 61 failures (based loosely on data from the American Management Association).
1. We are testing Ho: p = 0.5 vs Ha: p
an irate customer called dollar day mail order company 40 times during the last two weeks to see why his order had not
Between 1951 and 2000, there were 295 hurricanes in the Atlantic Ocean. Assume thatthe numbers of hurricanes in different years can be accurately modeled
What is the probability that a randomly chosen package is improperly sealed?
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