Math Problem Statement

Test the hypothesis using the P-value approach. H0: p = 0.74 versus H1: p ≠ 0.74, n = 500, x = 360, α = 0.01. Is np0(1 - p0) ≥ 10? Select the correct choice below and fill in the answer box to complete your choice.

Solution

The problem in the image is a hypothesis testing question using the P-value approach. You are asked to verify if the requirements of the test are satisfied by checking whether the product np0(1p0)10np_0(1 - p_0) \geq 10.

Let's break this down:

Given:

  • Null Hypothesis (H0H_0): p=0.74p = 0.74
  • Alternative Hypothesis (H1H_1): p0.74p \neq 0.74
  • Sample size n=500n = 500
  • Number of successes x=360x = 360
  • Significance level α=0.01\alpha = 0.01
  • p0=0.74p_0 = 0.74 (the hypothesized population proportion)

Step 1: Check np0(1p0)np_0(1 - p_0)

We need to calculate:

np0(1p0)=500×0.74×(10.74)=500×0.74×0.26np_0(1 - p_0) = 500 \times 0.74 \times (1 - 0.74) = 500 \times 0.74 \times 0.26

Step 2: Perform the Calculation

np0(1p0)=500×0.74×0.26=96.2np_0(1 - p_0) = 500 \times 0.74 \times 0.26 = 96.2

Step 3: Compare with 10

Since 96.21096.2 \geq 10, the condition is satisfied.

Therefore, the correct answer would be Yes, because np0(1p0)=96.2np_0(1 - p_0) = 96.2, which is greater than 10.

Let me know if you'd like further details on this!

Here are five related questions to expand your understanding:

  1. How do you interpret the P-value in hypothesis testing?
  2. What does it mean when a test fails to meet the requirement np0(1p0)10np_0(1 - p_0) \geq 10?
  3. How is the test statistic calculated for hypothesis testing for proportions?
  4. What is the role of the significance level α\alpha in hypothesis testing?
  5. How do you compute the P-value for a two-tailed hypothesis test?

Tip: Always verify the assumptions and conditions of a hypothesis test before performing the calculations. This ensures the validity of the test results.

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Math Problem Analysis

Mathematical Concepts

Hypothesis Testing
Proportions
P-Value Approach

Formulas

np0(1 - p0)

Theorems

Central Limit Theorem
Hypothesis Testing for Proportions

Suitable Grade Level

College