1. You are testing H0 : µ = 10 vs H a : µ < 10 based on a random
... 1. You are testing H0 : µ = 10 vs Ha : µ < 10 based on a random sample of 20 observations from a normal distribution. The data gave ȳ = 8, s = 4. The value of the t statistic is a.-0.5 b. -10 c.-2.24 answer: c. t= ...
... 1. You are testing H0 : µ = 10 vs Ha : µ < 10 based on a random sample of 20 observations from a normal distribution. The data gave ȳ = 8, s = 4. The value of the t statistic is a.-0.5 b. -10 c.-2.24 answer: c. t= ...
10
... 1. The claim is made that the mean I.Q. of students at a college is equal to 118. It is known that the population standard deviation of all the student I.Q.s is equal to 5. A sample of one hundred randomly selected students’ I.Q.s are collected. The sample mean is found to be 119. Assuming that the ...
... 1. The claim is made that the mean I.Q. of students at a college is equal to 118. It is known that the population standard deviation of all the student I.Q.s is equal to 5. A sample of one hundred randomly selected students’ I.Q.s are collected. The sample mean is found to be 119. Assuming that the ...
homework seven (due Mar 13)
... 15. A pollster states that a majority of a city’s voters will vote for a new stadium. A random sample of 400 voters found that 53% would vote for the new stadium. (a) write down the null & alternate hypotheses in this case (b) sketch the rejection region corresponding to level of significance α = 0. ...
... 15. A pollster states that a majority of a city’s voters will vote for a new stadium. A random sample of 400 voters found that 53% would vote for the new stadium. (a) write down the null & alternate hypotheses in this case (b) sketch the rejection region corresponding to level of significance α = 0. ...
