What is the value of w?

a.) 7
b.) 3.5
c.) 7 square root of 3
d.) 14

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

The area of square garden is 300m squared. how long is the diagonal?

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great