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The average number of pounds of meat a person consumes a year is 218.8 with a standard deviation of 25 pounds. Assume normal distribution. if a sample of 40 people is selected, what is the probablility that the mean of the sample will be less than 224 pounds per year.
question determine the probability of a normally distributed data point being in the ranges indicated in the following
Data shows the average GPA of students at a school is 2.9. The GPA of a random sample of 16 biology students is 3.1 (with sample standard deviation= 1.2)
What would be your recommendation to the local Farm Bureau for estimating the average loss of production per acre, given the data you have at hand?
facebook email electronic commerce and collaborative sites for both work and leisure are a normal part of our everyday
In what situations might you use probability as a manager to approach business-related problems? What are the advantages to using probability concepts in business decisions?
an anova table for multiple regression has the required information to compute the coefficient of multiple
Exponential distribution witha a mean value of 4 minutes. What is the probability that you will be served in less than three minutes on 4 of the next 6 days.
a bank manager wanted to double-check her claim that recent process improvements have reduced customer wait times to an
A random sample of the lifetime of 49 UltraIllum light bulbs has a mean of 3,960 hours and a standard deviation of 200 hours. Construct a 95% confidence interval estimate of the mean lifetime for all UltraIllum light bulbs.
a student club has 40 members including stacy and tom.a in how many ways can the club elect different individuals to
The accounting department at Weston Materials, Inc., national manufacturer of unattached garages, reports that it takes two construction workers mean of 32 hours and standard deviation of 2 hours to erect the Red Barn model.
Suppose they solicit 400 customers one day, and find that 250 of them have a Grayson's card. Assume that 60% of all Grayson's customers have a discount card, what is the probability of getting a sample proportion of at least 250 / 400=0.625?
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