An Engineer has a duty of conductingcompressive strength test for 50 concretecubes. 40 cubes passed the testsuccessfully and 10 cubes failed in the test.If 5 cubes are selected at random by theengineer to be inspected, determine theprobability that the selected concrete cubesexactly include 4 cubes passed and 1 cube:failed? Choose the correct answer0.254 O0.334 O0.678 O0.112 O0.431 O

It is given that Number of passed cubes = 40 Number of failed cubes = 10 Total cubes = 50 Sample…

Answered: An Engineer has a duty of conducting…

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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A farmer is examining the amount of fungi per square cm of maize plant. The average number of fungi per two square cm is 4. Find the probability that the number of fungi infections is 6per square cm.
When manufacturing fabric, the mean number of imperfections per yard of fabric is 0.12. Find the probability that 2 yards of fabric will have at most 1 imperfection.
Is the average time to complete an obstacle course different when a patch is placed over the right eye than when a patch is placed over the left eye? Thirteen randomly selected volunteers first completed an obstacle course with a patch over one eye and then completed an equally difficult obstacle course with a patch over the other eye. The completion times are shown below. "Left" means the patch was placed over the left eye and "Right" means the patch was placed over the right eye. Time to Complete the Course Right 40 40 41 43 49 48 45 48 Left 37 36 41 43 48 46 46 43 Assume a Normal distribution. What can be concluded at the the a = 0.05 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Họ: pd vV (please enter a decimal) Select an answer v H1: ud vv (Please enter a decimal) Select an answer v b. The test statistic t v- (please show your answer to 3 decimal places.) c. The p-value = (Please show…
Is the average time to complete an obstacle course longer when a patch is placed over the right eye than when a patch is placed over the left eye? Thirteen randomly selected volunteers first completed an obstacle course with a patch over one eye and then completed an equally difficult obstacle course with a patch over the other eye. The completion times are shown below. "Left" means the patch was placed over the left eye and "Right" means the patch was placed over the right eye. Time to Complete the Course Right 43 42 45 43 42 43|| 44 44 Left 42 42 47|| 41 42 43 46 || 44 Assume a Normal distribution. What can be concluded at the the a = 0.01 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer v Select an answer v Select an answer v (please enter a decimal) H: Select an answer v Select an answer v| Select an answer v (Please enter a decimal) b. The test statistic ? v (please…
find the probability of guessing at least 9 out of 14 correctly. Round inetermediate calculations and final answers to three decimal places
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The mean percent of childhood asthma prevalence in 43 cities is 2.38%. A random sample of 30 of these cities is selected. What is the probability that the mean childhood asthma prevalence for the sample is greater than 2.8%? Interpret this probability. Assume that o = 1.25%. The probability is (Round to four decimal places as needed.) Interpret this probability. Select the correct choice below and fill in the answer box to complete your choice. (Round to two decimal places as needed.) O A. About % of samples of 43 cities will have a mean childhood asthma prevalence greater than 2.8%. O B. About % of samples of 30 cities will have a mean childhood asthma prevalence greater than 2.38%. O C. About % of samples of 30 cities will have a mean childhood asthma prevalence greater than 2.8%. Click to select your answer(s). P Type here to search 99+ a (? 1:42 PM 4/11/2021 ho insen 144 ese & t backspace %23 3. %24 4 6. 8 2. Y W tab H. J. K pase 5 R
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In a large population, 56% of the people have been vaccinated. If 5 people are randomly selected, what is the probability that at least one of them has been vaccinated? Give your answer as a decimal to at 4 places. Question Help: Message instructor Submit Question D del F8 F9 F10 F11 F12 ins back DO + II P.
Customers using a self-service soda dispenser take an average of 16 ounces of soda with an SD of 4 ounces. Assume that the amount would be normally distributed. What is the chance that a randomly selected customer takes over 14 ounces of soda? Write your answer below in 4 decimal places. Answer:
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