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The Omega pharmaceutical firm has five salespersons, whom the firm wants to assign to five sales regions. Given their various previous contacts, the salespersons are able to cover the regions in different amounts of time. The amount of time (days) required by each salesperson to cover each city is shown in the following table:
Salesperson Region (days)A B C D E1 17 10 15 16 202 12 9 16 9 143 11 16 14 15 124 14 10 10 18 175 13 12 9 15 11
Which salesperson should be assigned to each region to minimize total time? Identify the optimal assignments and compute total minimum time.
If a random sample of 40 voters is chosen, approx. the probability that more than 20 favor this candidate. Use the normal approximation to the binomial with a correction for continuity.
What is the most controllable method of increasing the precision (narrowing) of the confidence interval? What percentage of times will the mean (population proportion) not be found within the confidence interval?
The following data represent glucose blood levels(mg/100ml) after a 12 hour fast for random sample of 70 women: Employ 6 classes and make a frequency distribution table.
What is the predicted values of the fund in the period t = 1? What is the predicted value of the fund in the period 3, and period 7?
The standard deviation of the expenditure is $3. A simple random sample of 64 students is taken. What are the expected value, standard deviation, and shape of the sampling distribution of the sample mean?
The population standard deviation for both groups is 6. At α = 0.01, is there a difference in the cholesterol levels between the two groups? Find the 99% confidence interval for the difference of the two means.
Tthen calculate the 95% and 99% CIs for the proportion of all female Hispanic drivers in Boston who wear seatbelts. Why is the 99% CI wider than the 95% CI?
Your manager, who just read an abridged version of a statistics book, wants you to test hypotheses for the difference in two population means.
He is equally likely to select any. Billy leaves last and takes the one remaining hat. Let x be the number of cowboys who end up with the correct hat.
What is the probability that both defective lights will be found within three trials?
My question bout How do I use the TINV function within excel to back out the t-statistic for the test? Why did you use the TDIST function? I know ho to use the TINV function, but what does it mean to back out the t-statistic for the test?
A sample of ten ER patients was conducted to determine their average wait time and to compare this to the target wait time. The hospital wants to make sure that patients do not wait more than 35 minutes. Test following hypotheses using a 95% con..
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