Homework Answers
Q1)
true positive=Sick people correctly identified as sick=persons have disease and screens positive=190
False negative=Sick people incorrectly identified as healthy=persons have disease but screens negative=28
Sensitivity = (true positive )/ ( true positive)+(false negative)
= 190/(28+190)
=0.9
Q2)
Similarly
Sensitivity= (170)/(170+21)
=0.9
20 30 40 50 60 70 80 99 100 110 120 130 140 150 160 170...
20 30 40 50 60 70 80 99 100 110 120 130 140 150 160 170 180 190 259 260 270 280 290 300 310 320 330 340 350 360 370 380 390 400 410 420 430 490 500 51 52 53 545 QUESTION 47 Ben bought a house for $500,000. The bank will make a mortgage loan with 10% down, 30 years at 3% annual interest rate with monthly payments. What will be Ben's monthly payment? $1,250.00 $1,388.89 O...
Transits - Application Complete the task correctly on first attempt. Failure to perform will be rewarded...
Transits - Application Complete the task correctly on first attempt. Failure to perform will be rewarded with -2 points per unsuccessful attempt. Star Light Curve 100.01 100.00 99.99 99.98 99.97 3 99.96 99.95 99.94 99.93 99.92 99.91 2 99.90 99.89 99.88 99.87 99.86 99.85 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350...
it is estimated that 40% of all sharks have a particular disease. Suppose a test for...
it is estimated that 40% of all sharks have a particular disease. Suppose a test for the disease has been developed - it has a false positive rate of 10% and a false negative rate of 5%. i) calculate the probability that a randomly selected shark will test positive for the disease. ii) if a shark tests positive for the disease, what is the probability that the shark actually has the disease?
Please help ID the molecule. Test for multiple bonds positive. Negative for Halide. Solubility test indicated...
Please help ID the molecule.
Test for multiple bonds positive. Negative for Halide.
Solubility test indicated inert compound.
(Not sure but boiling point could be around 50-60 C)
110 100 90 80 70 60 50 40 30 20 10 0 10 1000 500 1500 2500 2000 3500 3000 4000 Wavenumbers (cm-1) 568 35959 34578 115479423673 048157021261 653209976509 333332222221 8 0 998 8 2 66555 2 5 5 2 8 8 5 2 3
28. test A population proportion is .40. A random sample of size 200 will be taken...
28. test A population proportion is .40. A random sample of size 200 will be taken and the sa proportion p will be used to estimate the population proportion. a. What is the probability that the sample proportion will be within +.03 of the popu tion proportion? b. What is the probability that the sample proportion will be within +.05 of the popula- tion proportion? Aceume that the population proportion is .55. Compute the standard error of the proportion. 10
1. Dave currently has 82.5% on the homework, 9/18 on Test 1. 28/40 on Text 2....
1. Dave currently has 82.5% on the homework, 9/18 on Test 1. 28/40 on Text 2. 36/40 on Test 3, and did 4/5 Quizzes. Assume the total course grade is calculated just as in your course. The tests are weighted the same and the quizzes are assigned only completion grades. The marks for the course are as follows: Homework 40 Tests 10 Quizzes 10 Final 40 Total 100 (a) What is Dave's current percentage grade in the course? [3 points...
This Question: 1 pt 18 of 28 (0 complete) This Test: 28 pts possible IMG A...
This Question: 1 pt 18 of 28 (0 complete) This Test: 28 pts possible IMG A quality-control manager randomly selects 40 bottles of motor oil that were filled on October 3 to assess the calibration of the filling machine. What is the population in the study? OA. The 40 bottles of motor oil selected in the plant on October 3. O B. All bottles of motor oil produced in the plant in the given year. O C. All bottles of...
show all work please 2. Not all hotdogs have the same calories. Table 31.6 contains calorie data on a random sample of Beef, Poultry, and Veggie dogs. (One extreme outlier for Veggie dogs was omi...
show all work please
2. Not all hotdogs have the same calories. Table 31.6 contains calorie data on a random sample of Beef, Poultry, and Veggie dogs. (One extreme outlier for Veggie dogs was omitted from the data.) Does the mean calorie count differ depending on the type of hotdog? You first encountered this topic in Boxplots. Calories Beef Poultry Veggie 110 110 130 130 140 150 160 160 170 170 175 180 180 180 190 190 190 200 210...
Please show work :D M5.13 Rod and post with temperature change scenes 190 mm2 AT = 25°C 120 GPa = 15.7 x10-/C 40 kN (1)...
Please show work :D
M5.13 Rod and post with temperature change scenes 190 mm2 AT = 25°C 120 GPa = 15.7 x10-/C 40 kN (1) 290 mm2 (2) 200 GPa A B 17.7 x10-/C 2700 mm 1900 mm F (kN) A composite axial structure consists of two rods joined at flange B. Rods (1) and (2) are attached to rigid supports at A and C, respectively. A concentrated load P is applied to flange B in the direction shown. F2...
9. Match problems to procedures a. Given weights of 31, 29, 26, 33, 40, 28, 30,...
9. Match problems to procedures a. Given weights of 31, 29, 26, 33, 40, 28, 30, and 25, at α = 0.05 test that the population mean is 35. b. Test size C battery mean life is at least 25 hours. c. An effective vaccine would reduce the proportion of exposed persons contracting a disease. A pharmaceutical company wants to test the effectiveness of a new vaccine in preventing a certain disease. It is expected that 40% of unvaccinated exposed...
20 30 40 50 60 70 80 99 100 110 120 130 140 150 160 170 180 190 259 260 270 280 290 300 310 320 330 340 350 360 370 380 390 400 410 420 430 490 500 51 52 53 545 QUESTION 47 Ben bought a house for $500,000. The bank will make a mortgage loan with 10% down, 30 years at 3% annual interest rate with monthly payments. What will be Ben's monthly payment? $1,250.00 $1,388.89 O...
Transits - Application Complete the task correctly on first attempt. Failure to perform will be rewarded with -2 points per unsuccessful attempt. Star Light Curve 100.01 100.00 99.99 99.98 99.97 3 99.96 99.95 99.94 99.93 99.92 99.91 2 99.90 99.89 99.88 99.87 99.86 99.85 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350...
Please help ID the molecule.
Test for multiple bonds positive. Negative for Halide.
Solubility test indicated inert compound.
(Not sure but boiling point could be around 50-60 C)
110 100 90 80 70 60 50 40 30 20 10 0 10 1000 500 1500 2500 2000 3500 3000 4000 Wavenumbers (cm-1) 568 35959 34578 115479423673 048157021261 653209976509 333332222221 8 0 998 8 2 66555 2 5 5 2 8 8 5 2 3
28. test A population proportion is .40. A random sample of size 200 will be taken and the sa proportion p will be used to estimate the population proportion. a. What is the probability that the sample proportion will be within +.03 of the popu tion proportion? b. What is the probability that the sample proportion will be within +.05 of the popula- tion proportion? Aceume that the population proportion is .55. Compute the standard error of the proportion. 10
1. Dave currently has 82.5% on the homework, 9/18 on Test 1. 28/40 on Text 2. 36/40 on Test 3, and did 4/5 Quizzes. Assume the total course grade is calculated just as in your course. The tests are weighted the same and the quizzes are assigned only completion grades. The marks for the course are as follows: Homework 40 Tests 10 Quizzes 10 Final 40 Total 100 (a) What is Dave's current percentage grade in the course? [3 points...
This Question: 1 pt 18 of 28 (0 complete) This Test: 28 pts possible IMG A quality-control manager randomly selects 40 bottles of motor oil that were filled on October 3 to assess the calibration of the filling machine. What is the population in the study? OA. The 40 bottles of motor oil selected in the plant on October 3. O B. All bottles of motor oil produced in the plant in the given year. O C. All bottles of...
show all work please
2. Not all hotdogs have the same calories. Table 31.6 contains calorie data on a random sample of Beef, Poultry, and Veggie dogs. (One extreme outlier for Veggie dogs was omitted from the data.) Does the mean calorie count differ depending on the type of hotdog? You first encountered this topic in Boxplots. Calories Beef Poultry Veggie 110 110 130 130 140 150 160 160 170 170 175 180 180 180 190 190 190 200 210...
Please show work :D
M5.13 Rod and post with temperature change scenes 190 mm2 AT = 25°C 120 GPa = 15.7 x10-/C 40 kN (1) 290 mm2 (2) 200 GPa A B 17.7 x10-/C 2700 mm 1900 mm F (kN) A composite axial structure consists of two rods joined at flange B. Rods (1) and (2) are attached to rigid supports at A and C, respectively. A concentrated load P is applied to flange B in the direction shown. F2...
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