Illustration 16.60. A bank has a test designed to establish the creditrating of a loan applicant. If the persons, who default (D), 90% fail thetest (F). Of the persons, who will repay the bank (ND), 5% fail thetest. Furthermore, it is given that 4% of the population is not worthy ofcredit ; i.e., P(D) = .04. Given that someone failed the test, what is theprobability that he actually will default (when given a load)?CS Scanned with CamScanner

Answered: Image /qna-images/answer/f5da9a5f-30ea-41d6-993c-5763bee39320.jpg

Answered: Illustration 16.60. A bank has a test…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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2. Accidentally a Scientist discovered "Sesame" during his research and he observed that 12.0 quintals per acre yield can be expected by sowing the seeds. To verify his expectation, he put request to 10 farmers who are nearby his research center and they agreed. Seeds were sowed and the yield came after few months. The yields (quintals/acre) were recorded as 14.3, 12.6, 13.7, 10.9, 13.7, 12.0, 11.4, 12.0, 12.6, 13.1. Do the results confirm the expectation with 95% confidence?
5.
Suppose 58.8% of small businesses experience cash flow problems in their first 5 years. A consultant takes a random sample of 557 businesses that have been opened for 5 years or less. What is the probability that greater than 55.85% of the businesses have experienced cash flow problems? Question 2 options: 1) 0.9214 2) 0.5000 3) -6.0341 4) 0.0786 5) >0.999
R1
State the null and alternative hypothesis.In the maputi cotton factory, the employees want to confirm the news on the increase of their gross salary (U) to 700 pesos.
QUESTION 1: Miss Basson is taking her Gr 10 class on an outing to the Zoo. She has a class of 35 learners of which only 92% can join the outing. She asks each learner to pay for their ticket of R145. Use the information above to answer the questions that follow. Ms Basson has compiled an Income and expense statement after the class outing to the zoo. The statement showed only the learners that went on the outing as well as Ms Basson. Income and Expenses Statement Expenses Bus hire Income Class ticket sales School contribution Total: R2500 A B Zoo Entrance ticket (for the group) Snack-pack Total: R1650 R2400 R2720 C
The control department of a light bulb manufacturer randomly picks 4400 light bulbs from the production lot every week. The records show that, when there is no malfunction, the defect rate in the manufacturing process (due to imperfections in the material used) is 1%. When 1.25%o or more of the light bulbs in the sample of 4400 are defective, the control unit calls repair technicians for service. Answer the following. (If necessary, consult a list of formulas.) (a) Find the mean of p, where p is the proportion of defective light bulbs in a sample of 4400 when there is no malfunction. (b) Find the standard deviation of p. (c) Compute an approximation for P(p N 0.0125), which is the probability that the service technicians will be called even though the system is functioning properly. Round your answer to four decimal places.
Many investors and financial analysts believe the Dow Jones Industrial Average (DJIA) gives a good barometer of the overall stock market. On January 31, 2006, 9 of the 30 stocks making up the DJIA increased in price (The Wall Street Journal, February 1, 2006). On the basis of this fact, a financial analyst claims we can assume that 30% of the stocks traded on the New York Stock Exchange (NYSE) went up the same day.A sample of 80 stocks traded on the NYSE that day showed that 11 went up.You are conducting a study to see if the proportion of stocks that went up is is significantly less than 0.3. You use a significance level of α=0.02α=0.02.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value = The p-value is... less than (or equal to) αα greater than αα This test statistic leads to a decision to... reject the null accept the null fail…
to the information in question 1 and calculate the probability that less than 94% of the crde ATOte will be delivered on time. 1. 0.9082 2. 0.4082 3 06568 4 0.2486 5. 133
1. Which of the following is an example of time series problem? a. Estimating number of covid 19 patients in next 6 months. b. Estimating the total sales in next 3 years of an insurance company. c. Estimating your CGPA for Summer 2021. a) Only a b) Only b c) Only a & b d) All 3 of them 2. Which of the following can't be a component for a time series plot? a) Seasonality b) Trend c) Cyclical d) None of the above 3. If the demand is 100 during October 2016, 200 in November 2016, 300 in December 2016, 400 in January 2017. What is the 3-month simple moving average for February 2017? a) 300 b) 350 c) 400 d) Need more information 4. A regression equation for weight (y variable) and height (x variable) for 55 college students gave an error sum of squares (SSE) of 10.7 and a total sum of squares (SSTO) of 85.2. The proportion of variation explained by x, R³, is a) 11.2% b) 87.4% c) 88.6% d) None of the above
9(D)
7

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