Impact of Sample Size on Accuracy Compute the standard error for sample proportions from a population with proportion p = 0.75 for sample sizes of n = 40, n = 250
and n = 900.
Round your answers to three decimal places.
Sample Size
Standard Error
n = 40:
n = 250
n = 900

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can i see the following ?

step-by-step explanation:

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a