Mathematics, 15.08.2021 01:00, madi2878
This is all the points i have.
A researcher has conducted a survey using a simple random sample of 225 elementary teachers to create a confidence interval to estimate the proportion of elementary teachers favoring the addition of a soda machine to the cafeteria. Assume that the sample proportion does not change. The researcher now decides to survey a random sample of 25 teachers instead of 225 elementary teachers. Which of the following statements best describes how the confidence interval is affected by this change?
A.)The width of the new interval is about the same width as the original interval. B.)The width of the new interval is about twice the width of the original interval. C.)The width of the new interval is about one half the width of the original interval. D.) The width of the new interval is about one third the width of the original interval. E.)The width of the new interval is about three times the width of the original interval.
Could you pleae answer this thank you so much
Answers: 1
Mathematics, 21.06.2019 15:30, DJEMPGYT
Will give are given that xy is parallel to zw. if xz is a transversal that intercepts xy and zw, angle angle alternate interior angles. since xy is parallel to zw, we know that these angles are we also know that angle xvy and angle zvw are , and thus congruent. we can conclude that △xyv ~ △zwv using the similarity theorem.
Answers: 2
Mathematics, 22.06.2019 01:00, isabellecannuli
Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?
Answers: 1
This is all the points i have.
A researcher has conducted a survey using a simple random sample of...