Software companies work hard to produce software without bugs. A particular company claims that 90% of the software it produces is bug free. A random sample of size 200 showed 169 software programs were bug free. USE SALT (a) Calculate the mean of the sampling distribution of the sample proportion. 0.90 (b) Calculate the standard deviation of the sampling distribution of the sample proportion. (Round your answer to four decimal places.) 0.0212 (c) The shape of the sampling distribution of the sample proportion is approximately normal. Which of the following choices justifies that statement? O We have sampled less than 10% of the population. O A random sample was taken. The sample size is greater than 30. O np 2 10 and n(1-p) 2 10 x (d) Calculate the probability of obtaining a sample result of 169 out of 200 or less if the company's claim is true. (Use a table or technology. Round your answer to four decimal places.)
Software companies work hard to produce software without bugs. A particular company claims that 90% of the software it produces is bug free. A random sample of size 200 showed 169 software programs were bug free. USE SALT (a) Calculate the mean of the sampling distribution of the sample proportion. 0.90 (b) Calculate the standard deviation of the sampling distribution of the sample proportion. (Round your answer to four decimal places.) 0.0212 (c) The shape of the sampling distribution of the sample proportion is approximately normal. Which of the following choices justifies that statement? O We have sampled less than 10% of the population. O A random sample was taken. The sample size is greater than 30. O np 2 10 and n(1-p) 2 10 x (d) Calculate the probability of obtaining a sample result of 169 out of 200 or less if the company's claim is true. (Use a table or technology. Round your answer to four decimal places.)
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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