Answer:
Different values of margin of error for different significance level.
Step-by-step explanation:
We are given the following in the question:
p = 90% = 0.9
Sample size, n 790
We have to find the margin of error.
Formula:


Putting values, we get,





X=-6 and x=1/3 are both correct values so A and D
The answer to that question is that the icicle is 2 feet and 2 inches