ed on their records, a hospital claims that the proportion, p, of full-term babies born in the community that weigh e than 7 pounds is 43%. A pediatrician who works with several hospitals in the community would like to verify the pital's claim. In a random sample of 250 babies born in the community, 113 weighed over 7 pounds. Is there enough lence to reject the hospital's claim at the 0.10 level of significance? orm a two-tailed test. Then complete the parts below. y your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) state the null hypothesis and the alternative hypothesis H₁. H₁:0 (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.) H |x 5 0=0 O $ 2 OSO O0

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Question

#16

**Educational Website: Statistical Analysis of Hospital Claims**

**Context:**

A hospital claims that the proportion, \( p \), of full-term babies born in the community that weigh more than 7 pounds is 43%. A pediatrician working with several hospitals aims to verify this claim. In a random sample of 250 babies born in the community, 113 weighed over 7 pounds. We want to determine if there is enough evidence to reject the hospital’s claim at the 0.10 level of significance.

**Instructions for Performing a Two-Tailed Test:**

1. **Hypotheses:**
   - **Null Hypothesis \( H_0 \):** \( p = 0.43 \)
   - **Alternative Hypothesis \( H_1 \):** \( p \neq 0.43 \)

2. **Select a Test Statistic:**
   - Choose the appropriate test statistic to analyze the proportion based on the data provided.

3. **Calculate Test Statistic Value:**
   - Compute the value of the test statistic and ensure it is rounded to three or more decimal places.

4. **Determine the p-value:**
   - Find the p-value corresponding to the test statistic, rounding to three or more decimal places for precision.

5. **Decision Making:**
   - Assess if the evidence supports rejecting the claim that the proportion of full-term babies weighing more than 7 pounds is 43% using the calculated p-value.

   - Possible Answers:
     - Yes
     - No

**Graphical and Calculative Aids:**

- **Symbols Used:**
  - \( \mu, \sigma, p \) – Statistical notations
  - Different boxes for input fields and selection tools are provided for each step in the hypothesis testing procedure.

This framework assists learners in applying statistical concepts to real-world claims, guiding them through hypothesis testing using a structured approach.
Transcribed Image Text:**Educational Website: Statistical Analysis of Hospital Claims** **Context:** A hospital claims that the proportion, \( p \), of full-term babies born in the community that weigh more than 7 pounds is 43%. A pediatrician working with several hospitals aims to verify this claim. In a random sample of 250 babies born in the community, 113 weighed over 7 pounds. We want to determine if there is enough evidence to reject the hospital’s claim at the 0.10 level of significance. **Instructions for Performing a Two-Tailed Test:** 1. **Hypotheses:** - **Null Hypothesis \( H_0 \):** \( p = 0.43 \) - **Alternative Hypothesis \( H_1 \):** \( p \neq 0.43 \) 2. **Select a Test Statistic:** - Choose the appropriate test statistic to analyze the proportion based on the data provided. 3. **Calculate Test Statistic Value:** - Compute the value of the test statistic and ensure it is rounded to three or more decimal places. 4. **Determine the p-value:** - Find the p-value corresponding to the test statistic, rounding to three or more decimal places for precision. 5. **Decision Making:** - Assess if the evidence supports rejecting the claim that the proportion of full-term babies weighing more than 7 pounds is 43% using the calculated p-value. - Possible Answers: - Yes - No **Graphical and Calculative Aids:** - **Symbols Used:** - \( \mu, \sigma, p \) – Statistical notations - Different boxes for input fields and selection tools are provided for each step in the hypothesis testing procedure. This framework assists learners in applying statistical concepts to real-world claims, guiding them through hypothesis testing using a structured approach.
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