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The proportion p of residents in a community who recycle has traditionally been 60%. A policy maker claims that the proportion is less than 60%
The proportion p of residents in a community who recycle has traditionally been 60%. A policy maker claims that the proportion is less than 60% now t of the recycling centers has been relocated. If 115 out of a random sample of 220 residents in the community said they recycle, is there enough evidence support the policy maker's claim at the 0.10 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis Ho and the alternative hypothesis H1. O P H : 0 X S D H, : 1 (b) Determine the type of test statistic to use. (Choose one) 0=0 030 020 (c) Find the value of the test statistic. (Round to three or more decimal places.) 070 00 X 5 ? (d) Find the critical value. (Round to three or more decimal places.) (e) Is there enough evidence to support the policy maker's claim that the proportion of residents who recycle is less than 60%? OYes ONo
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