Question

Grandma Gertrude's Chocolates, a family owned business, has an opportunity to supply its product for distribution through a large coffee house chain. However, the coffee house chain has certain specifications regarding cacao content as it wishes to advertise the health benefits (antioxidants) of the chocolate products it sells.n order to determine the mean percentage of cacao n its dark chocolate products, quality inspectors sample 36 peces. They find a sampe mean of 55% with a sanad deviation of 4%. What is the margin of error at 95% confidence? OA. 1.36% OB, 1.67% O c. 0.67% OD, 1.13%

Answer 1

here we are given that the sample mean is 55% and the sample standard deviation is 5% andn=36

now we are to calculate margin of error at 95%

so margin of error=t(alpha/2,n-1)*s/sqrt(n)=1.36%

option A