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1. Explain the difference between the null and alternative hypothesis. Which one can be proven in a statistical sense?
2. What are the differences between one- and two- sample hypothesis tests? Describe the correct mathematical form for specifying the null and alternative hypotheses for both types of tests.
3. Explain Type I and Type II errors. Which one is controllable by the experimenter?
4. What is the difference between paired and independent samples?
5. Provide some practical examples from FINANCIAL SALES where regression models might be used.
6. Explain the difference between simple and multiple linear regression.
7. What do we mean by "significance of regression?"
Design a Linear programming problem for the flair Furniture Company and find the combination of tables and chairs that the company must produce to maximize profits.
Suppose that an IQ test was given to a large group of persons, the scores are assumed to be from a normally distributed population, that mean = 100 and s (standard deviation) = 15.
Assuming that the variability is unchanged (i.e., σ = 6), is there sufficient evidence to suggest that the strength of the product has increased at the 1% level of significance?
Leggo's pesto is make from a recipe brought to America by an immigrant ancestor the present generation refers to as Bisnonna Maria.
The theory underlying inferential statistics and other theoretical aspects are subjects we do not often consciously think about in our daily activities.
What would be a good example of a null and alternative hypotheses for a decision relevant in life? What Type I and Type II errors could occur with your decision-making process?
The only difference is that the first group is comprised of athletic persons and the second of non-athletic ones.
Calculate the range, variance, and standard deviation for these sample data.
According to table, which presents a MODI solution for a transportation problem, if that solution is used, which of the following is true.
Find out optimal decision
Calculate a 95% confidence interval for the mean endowment of all the private colleges in the United States assuming a normal distribution for the endowments.
At the .01 level of signiicance, is the true mean greater than 10?
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