Use the confidence level and Sample data to find the margin of error E. Round your answer to the same number of decimal places as the sample mean unless otherwise noted.

Soulistic blood pressures for women aged 18-24: 94% confidence, n=92, x = 112.1 mm Hg, standard deviation=13.5 mm Hg

A) 2.6 mm Hg

B) 2.3 mm Hg

C) 47.1 mm Hg

D) 2.2 mm Hg

Question

Mathematics

Natalie Duran

19 September, 16:59

Use the confidence level and Sample data to find the margin of error E. Round your answer to the same number of decimal places as the sample mean unless otherwise noted.

Soulistic blood pressures for women aged 18-24: 94% confidence, n=92, x = 112.1 mm Hg, standard deviation=13.5 mm Hg

A) 2.6 mm Hg

B) 2.3 mm Hg

C) 47.1 mm Hg

D) 2.2 mm Hg

+3

Answers (1)

Know the Answer?

Akira Bowers · Answer 1

A) 2.6 mm Hg

Step-by-step explanation:

Margin of error = critical value * standard error

ME = CV * SE

n > 30, so we can approximate CV with a normal distribution. At P = 94%, CV = 1.88.

SE = σ / √n

SE = 13.5 / √92

SE = 1.41

So the margin of error is:

ME = 1.88 * 1.41

ME = 2.6