At 95% confidence, how large a sample should be taken to obtain a margin of error of 0.05 for the estimation of a population proportion? Assume that past data are not available for developing a planning value for p*. (Round your answer up to the nearest whole number.)

The sample size 'n' = 384

Step-by-step explanation:

Step(i):-

Given data the margin of error = 0.05

The margin of error of the estimation of a population proportion is determined by

Step(ii):-

In data not given sample proportion 'p' but

we know that

cross multiplication, we get

0.05 ×√n = 0.98

squaring on both sides, we get

n = 384.16≅ 384

Final answer:-

The sample size 'n' = 384

366

step-by-step explanation:

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.