In an Opinion poll 66 out of 159 respondents said they would vote for Obama. (a) Find a 99% confidence interval for the proportion that would vote for Obama. (b) test the claim the proportion that...

In an Opinion poll 66 out of 159 respondents said they would vote for Obama. (a) Find a 99% confidence interval for the proportion that would vote for Obama. (b) test the claim the proportion that supports Obama is less than 50% Consider the following information Males Females Nintendo WiiOther ConsoleNintendo WiiOther ConsoleYoung59594015Old 3737302This represents some market research where the age, gender and preferred console are recorded for example there are 40 young females the prefer the Nintendo Wii What is the total number of people in the sampleSuppose the true proportion of young people is 70% what is the mean and variance of the number young people with the same total number of people as large as yours?What is the proportion of young people in your sampleWhat is the proportion of males in your sample If you are Just considering the Females that prefer other consoles what assumption is violated if you want to a confidence interval of the proportion of young people.?For the following sample of sales data 484,507,519,496,496,495Find a 95% confidence interval for the average of sales Test the claim the average sales is different to 500 Consider the following sample of sales data 484,507,519,496,496,495,22325 What can’t you apply the same methods you used in question 3 to the sample above? All that is required for the following question is to find the standard error of sample mean. In a sample of 25 flights the average number of passengers on each flight is 200 with standard deviation 10 what is the standard deviation of the sample mean. Page 2 of 3 for MIT121638S Manpreet Singh DeolConsider the sample belowID numberIncome (thousands $)GenderDepartment 178MaleHR286MaleHR379MaleIT466MaleIT556FemaleHR672FemaleHR757FemaleITClearly the sample size is to small, State what are the disadvantage/s of a small sample size using the terminology of the course.Find a 95% confidence interval for the standard deviation of males Test the claim the variance of females is...