Last year, a soft drink manufacturer had 21% of the market. in order to increase their portion of the market, the manufacturer has introduced a new flavor in their soft drinks. a sample of 400 individuals participated in the taste test and 100 indicated that they like the taste. we are interested in determining if more than 21% of the population will like the new soft drink.
a. set up the null and the alternative hypotheses.
b. determine the test statistic.
c. at 95% confidence, test to determine if more than 21% of the population will like the new soft drink.

Afirm plans to begin production of a new small appliance. the manager must decide whether to purchase the motors for the appliance from a vendor at $10 each or to produce them in-house. either of two processes could be used for in-house production; process a would have an annual fixed cost of $200,000 and a variable cost of $7 per unit, and process b would have an annual fixed cost of $175,000 and a variable cost of $8 per unit. determine the range of annual volume for which each of the alternatives would be best. (round your first answer to the nearest whole number. include the indifference value itself in this answer.)