A study of 17 randomly selected people had 6 of them say that they exercise at least 30 minutes per day, 9 say they did not, and 2 people declined to answer. Use the sign test at the 0.05 significance level to test the claim that the minority of people exercise at least 30 minutes per day. (a) What is the value of the test statistic used in this sign test? (b) What is the critical value in this sign test? (c) What is the correct conclusion of this sign test? O There is not sufficient evidence to warrant rejection of the claim that the minority of people exercise at least 30 minutes per day. O There is sufficient evidence to warrant rejection of the claim that the minority of people exercise at least 30 minutes per day. O There is not sufficient evidence to support the claim that the minority of people exercise at least 30 minutes per day. O There is sufficient evidence to support the claim that the minority of people exercise at least 30 minutes per day.

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