Question

MY NOTES -/1 POINTS MENDSTAT15 7.5.012. Random samples of size n - were selected from a binomial population with p -0.2. Use the normal distribution to approximate the following probability. (Round your answer to four de P(p < 0 10) = You may need to use the appropriate appendix table or technology to answer this question. MY NOTES 5. -13 POINTS MENDSTAT15 8.3.010. Find the necessary confidence interval for a population mean y for the following values. (Round your answers to two decimal places.) a 95% confidence interval, n = 81, X = 2.23, s2 -0.1087 Interpret the interval that you have constructed. In repeated sampling, 95% of all intervals constructed in this manner will enclose the population mean. There is a 95% chance that an individual sample mean will fall within the interval. In repeated sampling, 5% of all intervals constructed in this manner will enclose the population mean. There is a 5% chance that an individual sample mean will fall within the interval. 95% of all values will fall within the interval. You may need to use the appropriate appendix table or technology to answer this question. MVENIOTEC -12 DOINT M ENINCTAT16 2017 Type here to search o e 9 - e o

Answer 1

85 o ouzu solution D Here n=85, P=0.2 S.E={P(-) = 0-2 (1-0-2) = o.ouzu ne Placo D=P(22 0.1-0-2) =P (22-2.304) = 0.0106 2) Here n=81, X=2.23, 8=0.1087. def=n-1=81-1=80, At 95%, tają 1.99 The asy. C. I for it is a at tage et = 2.23+(99 091087 = 2-23+0.073 = (2.157, 2-303) = (2-16, 2-30) In repeated sampling as% of all intervals constructed in the manner caill enclose the population mean. Ist option