7) The percentage of students at a college that have internet connection at home is 80%. In a randomsample of 152 students, what is the probability that more than 38 students have the internet connection athome?8) A binomial experiment with probability of success p = 0.88 and n = 6 trials is conducted. What is theprobability that the experiment results ina) 4 or fewer success?b) 3 successes?9) Suppose that a random sample of 17 adult US males has a mean height of 69 inches with a standarddeviation of 2.5 inches. If we assume that the heights of adult males in US is normally distributed, findthe 95% confidence interval for the mean height of all US males.10) A coin-operated drink machine was designed to discharge a mean of 7 fluid ounces of coffee per cup. Ina test of the machine, the discharge amounts in 18 randomly chosen cups of coffee from the machinewere recorded. The sample mean and sample standard deviation were 7.19 fluid ounces and 0.28 fluidounces, respectively. If we assume that the discharge amounts are approximately normally distributed,there enough evidence, to conclude that the population mean discharge, µ, differs from 7 fluid ounces?Use the 0.05level of significance.11) Following is the bivariate data set. Answer the questions that follow using the data set. Answer thefollowing questions using calculator.Xy1 28 6.937.846.3567 87.2 4.5 4.5a) Find the correlation coefficient and interpret it.b) Write down the equation of the line of best fit.c) Estimate the value of y when x =5.5.Page 2 of 23.894.3

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Answered: 7) The percentage of students at a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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Problem 1P

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7) The percentage of students at a college that have internet connection at home is 80%. In a random sample of 152 students, what is the probability that more than 38 students have the internet connection at home?