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autumn f-bregas

autumn f.

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Question 15 (1 point) Listen Which of the following organisms has the characteristics of: causes food poisoning from undercooked meat, needs a medium called MAC/Sorbitol to isolate, and serology is key to specifically identify? A) E. coli O157:H7 B) Salmonella C) Campylobacter jejuni D) Citrobacter freundii

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In multiple regression, which coefficients can be given a causal interpretation?

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The weight of an object varies inversely as the square of the distance $d$ from the center of the sea. At sea level (3978 mi from the center of earth) an astronaut weighs 113 lb. Find her weight when she is 500 mi above the surface of the earth and spacecraft is not in motion?

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Convert the polar equation to a rectangular equation.\\ $r = \frac{6}{6 + 5\sin\theta}$\\ Simplify the rectangular equation by moving all of the terms to the left side\\ of the equation, and combining like terms. The right side of the equation\\ will then be 0. Enter the left side of the resulting equation in the box below.\\ $\boxed{\text{ }}=0$

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Thirty year B rated bonds of Parker Optical Company were initaially issued at a 10 percent yield. After 29 years the bonds have been upgraded to Aa2. Such bonds are currently yielding 8 percent to maturity. Determine the price of the bonds 1 years remaining to maturity?

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. (4 marks) Assume that the percentages for assignments, quizzes, midterm test and final exam for a course are 5%, 10%, 35%, 50%, respectively. The total marks for assignments, quizzes, midterm test and final exam are 10, 20, 50, 75, respectively. A student’s corresponding marks are 8, 16, 40, 72, respectively. What are the student’s final marks out of 100. (a) 86 (b) 88. (c) 90. (d) 91. (e) None of these a b c d e

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A loan of $10,000 is to be repaid by 60 monthly payments of $205.00 plus a smaller concluding payment made one month after the last $205 payment. Payments begin one month from now. If $j_{12} = 9\%$, find the amount of the smaller final payment. Multiple Choice $124.46 $135.62 $194.86 $196.32

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THE DNA STRAND READS TAC CAT AAA WHAT IS THE SECOND AMINO ACID IN THIS STRAND

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Consumer Reports gave the following data about calories in a 30-gram serving of chocolate chip cookies. Both fresh-baked (such as Duncan Hines and Pillsbury) and packaged cookies (such as Pepperidge Farm and Nabisco) were included. 153 152 146 138 130 146 149 138 168 147 140 156 155 163 153 155 160 145 138 150 135 155 156 150 146 129 127 171 148 155 132 155 127 150 110 a. Taking the point of view that the preceding data are representative of the population of all chocolate chip cookies, find a 90% confidence interval for the mean calories, μ, in a 30-gram serving for all chocolate chip cookies. The data set can be copied into Excel, where we can easily find the mean x̄ and standard deviation s. Recall that the formula for our error bound is E = t_(α/2)⋅s/√n. In order to find t_(α/2), the command is a little weird -- =t.inv.2t(.1, 34). The .1 comes from the fact that 10% is the complement of 90% and the 34 is our number of degrees of freedom. Remember that our degrees of freedom is sample size minus 1. b. Find a 95% confidence interval for the mean calories, μ, in a 30-gram serving for all chocolate chip cookies. This time, our t-value will come from =t.inv.2t(.05, 34). c. Compare the widths of the intervals found in parts a and b. As the confidence increases, does the width of a confidence interval increase or decrease?

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(+30) You have a motor connected to a pump that is pumping water\\ ($P_w$ = 1000 kg/m$^3$) upward, at a temperature of 50 $^\circ$C. The motor\\ draws 5.0 kW of electricity and has an efficiency of 90%. The pump has\\ an efficiency of 80%. The gray fluid in the manometer is mercury\\ ($P_{Hg}$ = 13,600 kg/m$^3$). The elevations are $H_1$ = 10 cm, $H_2$ = 15 cm, $H_3$ =\\ 98 cm (drawing is not to scale).\\ a. Find the difference in pressure between the outlet (point 2) and\\ the inlet (point 1).\\ b. Assuming that the inlet and outlet pipes are the same diameter,\\ find the mass flow rate of water through this pumping system.\\ c. What is the lowest absolute pressure you can have at point 2 if\\ you want to prevent cavitation (vaporization of the fluid) at\\ point 1?

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