Need ASAP Find the value of the test statistic z using The claim is the proporti

Question

Need ASAP Find the value of the test statistic z using The claim is the proportion of drowning deaths of children attributable to beaches is more than 0.25, and the sample statistics include n = 696 drowning deaths of children with 30% of them attributable to beaches. A) 3.05 B) -3.05 C) -2.88 D) 2.88 The principal of a middle school claims that the proportion of falling test scores of the seventh graders at his school are less than the proportion of falling test scores of the seventh-graders at a neighboring school, which have a proportion of failing p = 14.7%. Assuming that a hypothesis test of the claim has been conducted and that the conclusion is to reject the null hypothesis, state the conclusion in nontechnical terms. E) There is sufficient evidence to support the claim that the proportion is greater than 14.7%. F) There is sufficient evidence to support the claim that the proportion is less than 14.7%. G) There is not sufficient evidence to support the claim that the proportion is greater than 14.7%. H) There is not sufficient evidence to support the claim that the proportion is less than 14.7%. A manufacture uses a new production method to produce steel rods. A random sample of 17 steel rods resulted in a proportion of defective rods = 4.7%. At the 0.10 significance level, test the claim that the new production method produces a proportion of deflective rods different form 3.5%, which was the proportion for the old method A) H_0: p = 035, H_1: p 035, fail to reject H_0 C) H_0: p = 035, H_1: p notequalto .035, Reject H_0 D) H_0: p = .035, H_1: p notequalto .035, Fail to reject H_0 What do you conclude about the claim below? Do not use formal procedures or exact calculations. Use only the rare event rule and make a subjective estimate to determine whether the event is likely. Claim: A die is fair and in 100 rolls there are 63 sixes. A) There does appear to be sufficient evidence to support the claim because there are not substantially more sixes than expected. B) There is not sufficient evidence to support the claim because there are substantially more sixes than expected. C) There does appear to be sufficient evidence to support the claim because there are not substantially less sixes than expected D) There is not sufficient evidence to support the claim because there are substantially less sixes than expected.

Explanation / Answer

17)option A is correct

18)option F is correct

19)option D is correct

20)option B is correct

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