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john thompson

john t.

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The mean and standard deviation of a random sample of n measurements are equal to 33.533.5 and 3.73.7, respectively. a. Find a 9595% confidence interval for muμ if nequals=6464. b. Find a 9595% confidence interval for muμ if nequals=256256. c. Find the widths of the confidence intervals found in parts a and b. What is the effect on the width of a confidence interval of quadrupling the sample size while holding the confidence coefficient fixed? Question content area bottom Part 1 a. The 9595% confidence interval for muμ if nequals=6464 is approximately left parenthesis nothing comma nothing right parenthesisenter your response here,enter your response here. (Round to three decimal places as needed.) Part 2 b. The 9595% confidence interval muμ if nequals=256256 is approximately left parenthesis nothing comma nothing right parenthesisenter your response here,enter your response here. (Round to three decimal places as needed.) Part 3 c. Choose the correct answer below. A. Quadrupling the sample size while holding the confidence coefficient fixed does not affect the width of the confidence interval. B. Quadrupling the sample size while holding the confidence coefficient fixed decreases the width of the confidence interval by a factor of 4. C. Quadrupling the sample size while holding the confidence coefficient fixed increases the width of the confidence interval by a factor of 2. D. Quadrupling the sample size while holding the confidence coefficient fixed increases the width of the confidence interval by a factor of 4. E. Quadrupling the sample size while holding the confidence coefficient fixed decreases the width of the confidence interval by a factor of 2.

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Activity rates and product costs using activity-based cost Idris Inc. manufactures entry and dining room lighting fixtures. Five activities are used in manufacturing the fixtures. These activities and their associated budgeted activity costs and activity bases are as follows: Activity Budgeted Activity Cost Activity Base Casting $270,270 Machine hours Assembly 171,150 Direct labor hours Inspecting 28,320 Number of inspections Setup 52,060 Number of setups Materials handling 42,140 Number of loads Corporate records were obtained to estimate the amount of activity to be used by the two products. The estimated activity-base usage quantities and units produced follow: Activity Base Entry Dining Total Machine hours 5,310 4,700 10,010 Direct labor hours 4,560 6,850 11,410 Number of inspections 1,790 570 2,360 Number of setups 310 70 380 Number of loads 770 210 980 Units produced 10,600 5,300 15,900 a. Determine the activity rate for each activity. If required, round the rate to the nearest dollar. Activity Activity Rate Casting $fill in the blank 1 per machine hour Assembly $fill in the blank 2 per direct labor hour Inspecting $fill in the blank 3 per inspection Setup $fill in the blank 4 per setup Materials handling $fill in the blank 5 per load b. Use the activity rates in (a) to determine the total and per-unit activity costs associated with each product. Round the per unit amounts to the nearest cent. Product Total Activity Cost Activity Cost Per Unit Entry Lighting Fixtures $fill in the blank 6 $fill in the blank 7 Dining Room Lighting Fixtures $fill in the blank 8 $fill in the blank 9

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A firm has an investment-grade bond issue outstanding that pays $35 semiannual interest payments. The bonds sell at par and are callable at a price equal to the present value of all future interest and principal payments discounted at a rate equal to the comparable Treasury rate plus .50 percent. Which one of the following correctly describes this bond? Multiple Choice The bond has a "make whole" call price. The interest payments are variable. Market value is less than face value. The bond rating is B.

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Attempt 6: 3 out of 4 parts have been answered correctly. Select the Get help button to view a step-by-step solution guide. Find the vector equation for the line of intersection of the planes $4x + 5y + 5z = -4$ and $4x + 5z = 2$ $r = \langle \frac{1}{2}, -\frac{6}{5}, 0 \rangle + t\langle 25, 0$

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In order to avoid having to purchase private mortgage insurance (PMI) your down payment (or equity) should usually be about ____ % of the home's selling price. ? 10% ? 15% ? 20% ? 30%

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Example 6 The lamina shown below has a 70 mm diameter hole cut in it. Calculate the position of the centroid measured from P. 170 150 $\phi 70$ mm 40 200 P

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QUESTION 3 1c) A tsunami wipes out much of Asia's production capacity for a period of several months. The likely effect of such an event on U.S. domestic AD would be to: reduce U.S. imports from the Asian region and boost U.S. exports to the Asian region. Combined, these two effects would work to reduce the net exports component of domestic AD (a leftward shift). As a result, equilibrium real GDP and the price level would increase, ceteris paribus. boost U.S. imports from the Asian region and decrease U.S. exports to the Asian region. Combined, these two effects would work to increase the net exports component of domestic AD (a righward shift). As a result, equilibrium real GDP and the price level would increase, ceteris paribus. reduce U.S. imports from the Asian region and boost U.S. exports to the Asian region. Combined, these two effects would work to increase the net exports component of domestic AD (a rightward shift). As a result, equilibrium real GDP and the price level would increase, ceteris paribus. boost U.S. imports from the Asian region and decrease U.S. exports to the Asian region. Combined, these two effects would work to reduce the net exports component of domestic AD (a rightward shift). As a result, equilibrium real GDP and the price level would decrease, ceteris paribus.

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One of the guy-wires forms an angle of alpha = 0.31 radians with the antenna and the opposing guy-wire forms an angle of eta = 0.43 radians with the antenna. What is the horizontal distance between anchor 1 and the base of the antenna? tan(0.31)170 feet tan ( 0.31 ) 170 = 54.45567586324711. What is the horizontal distance between anchor 2 and the base of the antenna? tan(0.43)170 feet tan ( 0.43 ) 170 = 77.96557399254438. What is the distance between anchor 1 and anchor 2? tan(0.31)170+tan(0.43)170 feet tan ( 0.31 ) 170 + tan ( 0.43 ) 170 = 132.42124985579147. What is the length of the guy-wire connected to the top of the antenna and anchor 1? feet What angle does the guy-wire make with the ground at anchor 1? radians

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2. Approximately, how prevalent is ADHD within the United States? 1 in every 10,000 children 1 in every 5 children 1 in every 20 children 1 in every 100 children

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Find the row reduced echelon form of the following matrix: A = 4 0 2 0 -3 4 1 0 -1 0 0 3 1 0 -2 8 2 0 -2 0 0 0 1 0 -3 What is Rank(A)?

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