Would you utilize an attribute-based or an attitude-based decision approach to purchasing (or renting) a BBQ grill? Which if any, situational factors would change your strategy?

Are the following statements true or false? Explain your reasoning.

a. "If we see a standardized $z$-value beyond $\pm 3$, the variable cannot be normally distributed."

b. "If $X$ and $Y$ are two normally distributed random variables measured in different units (e.g., $X$ is in pounds and $Y$ is in kilograms), then it is not meaningful to compare the standardized $z$-values."

c. "Two machines fill 2 -liter soft drink bottles by using a similar process. Machine $A$ has $\mu=1,990 \mathrm{ml}$ and $\sigma=5 \mathrm{ml}$ while Machine $B$ has $\mu=1,995 \mathrm{ml}$ and $\sigma=3 \mathrm{ml}$. The variables cannot both be normally distributed since they have different standard deviations."

Perform each of the following steps.

a. Find the Spearman rank correlation coefficient. b. State the hypotheses. c. Find the critical value. Use $\alpha=0.05$. d. Make the decision. e. Summarize the results.

Use the traditional method of hypothesis testing unless otherwise specified. A police chief records the gender of the drivers who receive speeding tickets. Test the claim at $\alpha=0.05$ that the gender of the ticketed drivers is random.

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Use the general factoring strategy to completely factor each polynomial. If the polynomial does not factor, then state that it is nonf actor able over the integers.

$$8 x^2+3 x-4$$

The following problem concern the 11th-grade class, who decides to run a lottery to help finance the prom. A person pays $1 and picks three different digits. If all three digits match the winning digits, the class pays the person$100 (but keeps the $1). If not, the class keeps the$1.

What is the 11 th-grade class's payoff if the pick is the winning combination? What is the class's payoff if the pick is not the winning combination?

The federal nutrition guidelines prepared by the Center for Nutrition Policy and Promotion of the U.S. Department of Agriculture stress the importance of eating substantial servings of fruits and vegetables to obtain a healthy diet. You have been asked to determine if the per capita consumption of fruits and vegetables at the county level is related to the percentage of adults with diabetes in the county. Data for this study are contained in the data file Food Nutrition Atlas, whose variable descriptions are found in the appendix.

Use the algebraic tests to check for symmetry with respect to both axes and the origin. (Select all that apply.)

x-y^2=15

-x-axis symmetry -y-axis symmetry -origin symmetry -no symmetry

Pinder Co. produces and sells high-quality video equipment. To finance its operations, Pinder Co. issued $25,000,000 of five-year, 7% bonds, with interest payable semiannually, at a market (effective) interest rate of 9%. Determine the present value of the bonds payable, using the present value of$1 at compound interest table and the present value of an annuity of $1 at compound interest table. Round to the nearest dollar.

In the Sixth Meditation, Descartes writes I first take notice here that there is a great difference between the mind and the body, in that the body, from its nature, is always divisible and the mind is completely indivisible. Descartes’s argument can be expressed as follows: All bodies are divisible. No minds are divisible. Therefore, no minds are bodies. Use an Euler diagram to determine whether the argument is valid or invalid.

Find the local maximum and minimum values of using both the First and Second Derivative Tests. Which method do you prefer? f(x)=1+3x^2-2x^3

Determine the shear force and bending moment as functions of $xx$.Strategy: Cut the beam at an arbitrary position $xx$ and draw the free-body diagram of the part of the beam to the left of the plane.

Monthly loan payments Tim Smith is shopping for a used car. He has found one priced at $\$ 4,500$. The dealer has told Tim that if he can come up with a down payment of $\$ 500$, the dealer will finance the balance of the price at a $12 \%$ annual rate over 2 years ( 24 months). a. Assuming that Tim accepts the dealer's offer, what will his monthly (end-ofmonth) payment amount be?

Choose the term that describes the best following statement: An objective evaluation of a party’s ability to pay debts _______. a. artisan’s lien; b. bankruptcy; c. credit rating; d. finance charge; e. garnishment; f. guarantor; g. insolvent; h. involuntary bankruptcy; i. lien; j. mechanic’s lien; k. pawn; l. pledgee; m. pledgor; n. principal debtor; o. surety; p. suretyship; q. unsecured debt; r. voluntary bankruptcy

Refer to previous exercise. Use the output in previous figure to answer the following questions. (a) For individuals who have used Facebook more frequently during the past year, determine the conditional distribution of gender. (b) Do the same for those who did not increase their Facebook time. (c) Graphically display the two conditional distributions. (d) Write a short summary interpreting the two conditional distributions.