Question: A certain business concern needs to obtain at least 20% of the market in order to make a profit. A random sample of 200 prospective

A certain business concern needs to obtain at least 20% of the market in order to make a profit. A random sample of 200 prospective buyers is asked whether they will purchase the product. What should the company conclude if (find the 95% CI in each case, in addition to performing the null hypothesis test):

a. 26 of those asked said they would buy the product?

b. 46 of those asked said they would buy the product?

c. 58 of those asked said they would buy the product?

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