In a random sample of 250 people, 180 agree. Estimate the standard error. Round your answer to three decimal places. Standard error = Enter

Question

In a random sample of 250 people, 180 agree. Estimate the standard error. Round your answer to three decimal places. Standard error = Enter your answer; Standard error

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Eloise 7 months 2021-10-07T22:40:31+00:00 1 Answer 0 views 0

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    2021-10-07T22:41:59+00:00

    Answer:

    Standard error = 0.028

    Step-by-step explanation:

    Standard error of the mean = √x(N-x)/N3 = 0.028

    Standard error is  0.028

    If you need further answer, see below

    α = (1-CL)/2 = 0.025

    Standard normal deviate for α = Zα = 1.960

    Proportion of positive results = P = x/N = 0.720

    Lower bound = P – (Zα*SEM) = 0.664

    Upper bound = P + (Zα*SEM) = 0.776

    95% Confidence interval is 0.664 to 0.776

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45:7+7-4:2-5:5*4+35:2 =? ( )