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1. Define probability and explain its three perspectives. Provide an example of each.
2. Explain the concept of mutually exclusive events. How do you compute the probability P(A or B) when A and B are, and are not, mutually exclusive.
3. What is the standard error of the mean? How does it relate to the standard deviation of the population from which a sample is taken?
4. Describe the difference between subjective and probabilistic sampling methods. What are the advantages and disadvantages and disadvantages of each?
5. How does the t-distribution differ from the standard normal distribution?
6. Discuss how confidence intervals can help in making decisions. Provide some examples.
Prepare an ANOVA table and test the null hypothesis of no linear relationship between the two variables.
Hours worked is important predictor of amount of sales.
At the .05 significance level, can we conclude that the guideline is still reasonable?
Upon reviewing the accounting records from the restaurant, you discover that it grosses roughly $3000 per day on 6 out of 10 days. Determine the estimated probability that the restaurant will gross over $3000:
Suppose normality is not assumed. What nonparameiric test can be used to compare total heart weight of males with left-heart disease with that of normal males?
Compare 2 moving averages using MSE and compute Exponential smoothing. The subsiquent data which represents demand for company ABC's products for the last 10 months.
A processor of carrots cuts green top off each carrot, washes the carrots, and inserts six to a package. Twenty packages are inserted in a box for shipment. To test weight of the boxes, a few were checked.
The researcher in exercise decides to conduct the same study using a within - participates design to control for differences in cognitive ability.
A Correlation matrix (correlation, coefficients and probability level under the hypothesis rho = 0) for a company's sales force (age, years of service, and current sales) is given below. Comment.
Binomial distribution to find out the mean also standard deviation. Variance and standard deviation of a lot of 300 calculators.
First National Bank and City National Bank are competing for customers who would like to open IRAs. 32 weeks are randomly selected for First National Bank and another 32 weeks are randomly selected for City National.
Cheating Gas Pumps When testing gas pumps in Michigan for accuracy, fuel-quality enforcement specialists tested pumps and found that 1299 were not accurate (within 3.3 oz when 5 gal is pumped), and 5686 were accurate.
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