Mathematics, 20.10.2020 05:01, alyssaflores

You are interested in estimating the the mean age of the citizens living in your community. In order to do this, you plan on constructing a confidence interval; however, you are not sure how many citizens should be included in the sample. If you want your sample estimate to be within 4 years of the actual mean with a confidence level of 98%, how many citizens should be included in your sample? Assume that the standard deviation of the ages of all the citizens in this community is 20 years. Sample Size:

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 21:30, emilyplays474

Which of the following is a solution of z^6 = 64i? 2(cos105° + isin105°) 2(cos120° + isin120°) 2(cos135° + isin135°) 8(cos15° + isin15°)

Answers: 1

continue

Mathematics, 21.06.2019 22:00, juniorracer148

For [tex]f(x) = 4x + 1[/tex] and (x) = [tex]g(x)= x^{2} -5,[/tex] find [tex](\frac{g}{f}) (x)[/tex]a. [tex]\frac{x^{2} - 5 }{4x +1 },x[/tex] ≠ [tex]-\frac{1}{4}[/tex]b. x[tex]\frac{4 x +1 }{x^{2} - 5}, x[/tex] ≠ ± [tex]\sqrt[]{5}[/tex]c. [tex]\frac{4x +1}{x^{2} -5}[/tex]d.[tex]\frac{x^{2} -5 }{4x + 1}[/tex]

Answers: 2

continue

Mathematics, 21.06.2019 23:00, kierafisher05

Acaterpillar eats 1400\%1400% of its birth mass in one day. the caterpillar's birth mass is mm grams. which of the following expressions could represent the amount, in grams, the caterpillar eats in one day? \

Answers: 1

continue

Mathematics, 21.06.2019 23:30, isabel2417

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3

Answers: 3

continue

Do you know the correct answer?

You are interested in estimating the the mean age of the citizens living in your community. In order...