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Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,000 and $45,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. What is the planning value for the population standard deviation (to the nearest whole number)?How large a sample should be taken if the desired margin of error is as shown below (to the nearest whole number)?
What is the probability that a freshman selected at random from this group is enrolled in an economics and/or a mathematics course.
Suppose that two of her friends (of the 14 of either gender) do not like each other. If one of the two is invited, the other will not come to the party. How many ways are there to invite 8 people to the party. Explain.
The Ortegas decide to buy some furniture priced at $400 with $40 down and the balance to paid for using 10% add-on interest, to be paid in monthly installments over one year. What are the total interest they will be charged? and what is their mont..
Prove or disprove that the subgroup H is normal in the group G and what is the order of the factor group D8=Z(D8)?
The Transamerican pyramid in san fransisco is 853 ft tall with a square base that is 149 ft on each side. what is the colume to the nearest thousand cubic foot.
The derivative of a continuous function at x is the slope of the tangent line to the curve at x. The attached pdf file develops the idea of a derivative first using slopes of secant lines and then introducing and explaining the difference quotient..
The sail area displacement ration S provides a measure of the sail power available to drive a boat. For a boat with a displacement of d pounds and a sail area of A square feet.
The circumference of a sphere was measured to be 89000 cm with a possible error of 050000 cm. Use linear approximation to estimate the maximum error in the calculated surface area.
Your boss has asked you to put together a report showing the relationship between these two variables. What could you present and why?
Determine the type I and type II error
four pairs of data yield r=0.942 and the regression equation y = 3x. also, y = 12.75. what is the best predicted value of y for x = 2.9?
Using graphing to check your answers is helpful. When you factor a trinomial into two binomials, each binomial represents a linear relationship. If you plot the two binomials (which are just lines) on a graph
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