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Q1) Random sample of 16 pharmacy customers illustrated the waiting times below (in minutes).
21 22 22 17 21 17 23 20
20 24 9 22 16 21 22 21
Determine a 90 percent confidence interval for μ, suppose that sample is from a normal population.
Q2) Let the following transportation Problem
1
2
supply
A
5
6
100
B
4
200
C
3
150
D
9
7
50
250
Write complete linear programming model (All three parts) to find out the number of items to be transported from models A, B, C, and D to nodes 1 and 2 at minimum cost. You don't have to solve problem.
In a regression model involving 30 observations, the following estimated regression equation was obtained:
The 50 members of the placebo group had blood pressure lowered by an average of 15 points with standard deviation 8 points. To analyze this information we will use a, When testing whether or not the increases in spending are different, the test is ..
Utilizing a binominal experiment, that is each trail can be reduced to two outcomes, construct a binomial distribution.
If the decision in the hypothesis test of population correlation is to reject the null hypothesis, what can we conclude about the population correlation.
For a sample with standard deviation of 10, a score of X = 44 corresponds to z-score of 0.50. Based on this info, determine the sample mean?
Use the Chi-square test of independence with a .01 level of significance to determine whether appeal is independent from type.
Suppose that the number of babies born during an hour at a hospital's maternity wing follows a Poisson distribution with a mean of 4 per hour.
If the basket ball player is a 74% free throw shooter, then, on average, how many free throws will he or she make in a game with eight free throw attempts?
First part of this theorem allows a problem solver to compute probabilities about sample means regardless of whether a population is normally distributed.
The casino game craps is based on rolling two dice. Here is the assignment of probabilities to the sum of numbers on the up face when two dice are rolled:
Determine the probability in big class that both sections are covered? Only one section? Neither section? Determine the expected number of sections covered?
What is the city mileage standard deviation for this SUV model?
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