Question

Winter 2019 Fully Online Mat 150 (Intro to Statistics) Section 0503 Sherly Hernandez & 1。1 1/17/194 Homework: Chapter 7: Estimates and Sample Sizes Score: 0 of 1 pt ⓧ 7.2.191 | 7 of 20 (7 complete) ▼ HW Score: 22.5%, 4 Question Assume that a random sample is used to estimate a population rtion p. Find the margin of error E that corresponds to the given statistics and confidence level. the mar 95% confidence; the sample size is 1326, of which 35% are successes The margin of error E = [-]. (Round to four decimal places as needed.) Enter your answer in the answer box and then click Check Answer. All parts showing Clear All ace

95% Confidence the sample size is 1326, of which 35% Are successes

Answer 1

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We have been given the following info:

95% confidence
sample size is 1326
p = 35%

So, margin of error = E = ?

Z*sqrt(p*p'/n) = Margin of error

A 95% Confidence has 1.96 as Z score

Hence, margin of error
= Z*sqrt(p*p'/n)
= 1.96*sqrt(.35*.65/1326)
= 0.0257

Answer to the question: Margin of error = 0.0257