An automobile manufacturer stated that it will be willing to mass produce electric-powered cars
if more than 30% of potential buyers indicate they will purchase the newly designed electric cars. In a
sample of 500 potential buyers, 160 indicated that they would buy such a product.
a. State the hypotheses for this problem
b. Compute the standardized test statistic.
c. At 5% (a = .05) significance level, what is your conclusion? Should the manufacturer produce
the new electric powered car

View the original article here