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 that one of the recycling centers has been relocated. If 116 out of a random sample of 225 residents in the community said they recycle, is there enough evidence to support the policy maker's claim at the 0.01 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. HO H:0 (b) Determine the type of test statistic to use. (Choose one) ▼ (c) Find the value of the test statistic. (Round to three or more decimal places.) (d) Find the p-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 O No μ X 0 0=0 X O 00 OSO 0<0 Р 3 59 020 >O
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 that one of the recycling centers has been relocated. If 116 out of a random sample of 225 residents in the community said they recycle, is there enough evidence to support the policy maker's claim at the 0.01 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. HO H:0 (b) Determine the type of test statistic to use. (Choose one) ▼ (c) Find the value of the test statistic. (Round to three or more decimal places.) (d) Find the p-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 O No μ X 0 0=0 X O 00 OSO 0<0 Р 3 59 020 >O
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The task is to determine whether there is enough evidence to support a policy maker's claim regarding the proportion of residents in a community who recycle. The claim is that the proportion is now less than 60% after the relocation of recycling centers. The relevant data shows that 116 out of a random sample of 225 residents said they recycle. This requires performing a one-tailed test at the 0.01 level of significance.
### Step-by-Step Analysis:
**(a) Hypotheses:**
- Null Hypothesis (\(H_0\)): \(p \geq 0.60\)
- Alternative Hypothesis (\(H_1\)): \(p < 0.60\)
**(b) Type of Test Statistic:**
- Choose the appropriate test statistic, typically a z-test for proportions.
**(c) Calculate Test Statistic:**
- Input the formula and calculate the z-value.
- Round off your answer to three or more decimal places.
**(d) Calculate p-value:**
- Determine the probability associated with the test statistic.
- Round your answer to at least three decimal places.
**(e) Decision:**
- Based on the p-value and the significance level (\(\alpha = 0.01\)), decide if there is sufficient evidence to support the policy maker's claim.
- Select either Yes or No.
**Additional Visuals:**
A visual tool with various symbols (µ, \(\hat{p}\), \( \bar{x} \), \(\sigma\), etc.) is provided for hypothesis expressions and calculations.
**Conclusion:**
Answer the question: "Is there enough evidence to support the policy maker's claim that the proportion of residents who recycle is less than 60%?" and select Yes or No.
Finally, options are available for saving the work or submitting the assignment.
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