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Q1) State meat inspector in Iowa has been given assignment of evaluating mean net weight of packages of ground chuck labelled "3 pounds." Of course, he realizes that weights cannot be precisely 3 pounds. Sample of 36 packages reveals mean weight to be 3.01 pounds, with standard deviation of 0.03 pounds.
a) What is the estimated population mean?
b) Find out a 95% confidence interval for population mean.
2) What is sampling error? Could value of sampling error be zero? If it were zero, what would this mean?
3) Write down the reasons for sampling. Provide example of each reason for sampling.
If the mean times for both George and Julia are actually the same, what is the probability that George will be let go?
Data in table represent number of consumer complaints against major U.S. airlines. If one complaint from table is arbitrarily chosen, determine the probability that it was filed against United Airlines.
The Federal minimum wage is $7.25 (effective July 2009). If an employee earns the new minimum wage, how many complaints can that employee expect to receive?
What is the population from which your sample has been taken? Description of data taken from other sources. Preliminary analysis using histograms, box plots, scatter plots, etc. and investigation of outliers. Do you keep or discard identified outl..
Given that P (A) = 0.7, P (B) = 0.5, and P (A B) = 0.8. Find the following probabilities:
Compare the two forecasts computed in (a) and (b), using MAD. Which one should the dealer use for January of the next year?
Compute the optimal production quantities for the company?
Suppose that n trials of a binomial experiment result in no successes.
Draw suitable distribution curve indicating position of the TS and CV.
Is it necessary to assume a normal distribution on the population to estimate the value of the mean spending per day? Explain.
Expand and aggregate plan using each of the following guidelines and complete the total cost for each plan. Which plan has the lowest total cost.
Probability based on normal distribution. Suppose among X has a normal distribution, and find the indicated probability.
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