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The manager of a department store wants to determine what proportion of people who enter the store use the store's credit card for their purchases. What size sample should he take so that at 99% confidence the error will not be more than 8%?
What are some of the pros and cons of Net Neutrality? Can you please summarize this in a short paper that consists of 3 paragraphs.
Explain the difference between a population and a sample. In which of these is it important to distinguish between the two in order to use the correct formula?
Suppose you are an operations manager for a plant that manufactures batteries. Give an example of how you could use descriptive statistics to make better.
A random sample of 36 drinks from a soft drink machine has an average content 7.6 ounces with an standard deviation of 0.48 ounces. Test the hypothesis ounces against the alternative hypothesis at the 0.05 level of significance.
Using a .05 level of significance, test the hypothesis that there is no difference between the starting annual salaries of public accountants and financial planners. What is your conclusion?
Finally, if someone told you that the average of a data set was 40, and that standard deviation was 10, what else could you derive from that information?
discuss reliability and validity in qualitative
Find the sample space S for this experiment.- List the outcomes in each of the events A, B, C, and D.- List the outcomes in the events A ∪ B and A ∩ B.
Without doing any calculations, predict whether the correlation and the slope will be positive or negative. Explain your prediction.
A has one share in a lottery in which there is 1 prize and 2 blanks; B has three shares in a lottery in which there are 3 prizes and 6 blanks. Compare probability of A's success to that of what is B's success?
use the following information to answer the three items belowin a certain large forest 25 of all the beech trees show
Find an equation of the least squares regression line. Based on the equation from part a, what is the predicted final exam score if the average quiz score is 80
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