SOLUTION: A telephone survey gives 670 consumers two choices: Do they prefer Coke or Pepsi? Exactly 158 of those surveyed state that they prefer Coke. Assuming that = 0.10, test the hypo

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Question 235010: A telephone survey gives 670 consumers two choices: Do they prefer Coke or Pepsi? Exactly 158 of those surveyed state that they prefer Coke. Assuming that = 0.10, test the hypothesis that the proportion of the population that prefers Coke is 50%.
· State the null and alternate hypotheses
· Calculate the sample proportion
· Calculate the value of the test statistic.
· Determine the critical value(s).
· State your decision: Should the null hypothesis be rejected?

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