If 500 high school students, 376 said they would prefer to have computers in every classroom then the confidence interval at 95% is (71.41%,78.99%) Since option (a) is correct.
Given x= 376, n = 500
The (71.41%,78.99%)

Critical values
Using the z-table the z-critical value at the given significance level at α=0.05 is,
Construct a 95% confidence interval
That is,



= (71.41%,78.99%)
Learn more about confidence intervals here: brainly.com/question/15712887
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I you think about it 12a with the 2 on the rope is actually 144 because it’s multiplied by 12 so maybe that helps?
18 !
27/x = 12/8
Cross multiply and then solve
The answer is(6,9) i think