A teacher asked four of her students to write an expression for the problem below. All products in a store are being discounted
1 answer:
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Answer:
Margin of Error = 1.96 7.75 = 15.19
Step-by-step explanation:
i) Margin of Error of a population with a standard deviation of 7.75?
ii) Let us assume a two tailed test with a 95% confidence interval
iii)
iv) therefore Margin of Error = 1.96 7.75 = 15.19