Aresearcher constructs a confidence interval for a population proportion using a sample of size 50. the value of pë† is .3, and the resulting confidence interval is determined to be (.1323, .4677). what's the level of confidence for this interval? a. 80%b. 90%c. 95%d. 99%e. not enough information to answer

d. 99%

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of , and a confidence interval , we have the following confidence interval of proportions.

In which

Z is the zscore that has a pvalue of .

For this problem, we have that:

Let's start from the higher confidence levels, since the higher the confidence level, the higher the width of the interval.

d. 99%

So , z is the value of Z that has a pvalue of , so .

The lower limit is:

The upper limit is:

This is very close to the interval found, so d. is the correct answer

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation: