Use the given data to find the minimum sample size required to estimate a population proportion or percentage. margin of error: seven percentage points, confidence level 95%, from a prior study,^p is estimated by the decimal equivalent of 42%n= (round to the nearest integer.)

191

Step-by-step explanation:

Formula to find the minimum sample size required to estimate a population proportion or percentage:

, where = proportion estimated by prior study.

E= Margin of error.

z* = Critical z-value.

Given : Confidence level = 95%

Critical value for 95% confidence = z*=1.96

E= 7%= 0.07

Then,

Hence, the minimum sample size required=191

step-by-step explanation:

you can add the two numbers and divide the result by 2. or you can find the gap between the two numbers and add half of this to the smaller number.

dont think so

step-by-step explanation: