Math Problem Statement

State the appropriate null and alternate hypotheses. H0:p=0.11,H1:p>0.11 This hypothesis test is a right-tailed test. Compute the value of the test statistic.

Solution

To compute the value of the test statistic for the given hypothesis test, we follow these steps:

1. State the hypotheses:

  • Null hypothesis (H0H_0): p=0.11p = 0.11
  • Alternative hypothesis (H1H_1): p>0.11p > 0.11 (this is a right-tailed test)

2. Formula for the Test Statistic (Z):

The test statistic for a proportion is given by the formula:

Z=p^p0p0(1p0)nZ = \frac{\hat{p} - p_0}{\sqrt{\frac{p_0 (1 - p_0)}{n}}}

Where:

  • p^\hat{p} = sample proportion
  • p0p_0 = population proportion under the null hypothesis (in this case, p0=0.11p_0 = 0.11)
  • nn = sample size

3. Gather Information:

To proceed, I need:

  • The sample proportion p^\hat{p} (from the sample data)
  • The sample size nn

Once I have these values, I can compute the value of the test statistic ZZ.

Do you have the values for p^\hat{p} and nn? Feel free to provide them, and I can complete the calculation.


Relative Questions:

  1. What is the relationship between the sample proportion and population proportion in hypothesis testing?
  2. How does the sample size impact the test statistic?
  3. Why is this considered a right-tailed test, based on the alternative hypothesis?
  4. What are the common significance levels used in hypothesis testing?
  5. How can we interpret the result of the Z-test in terms of rejecting or failing to reject H0H_0?

Tip: When performing hypothesis testing, always check the assumptions (e.g., sample size and normality) before proceeding with the test.

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Math Problem Analysis

Mathematical Concepts

Statistics
Hypothesis Testing
Proportion Testing

Formulas

Z = (p̂ - p₀) / √(p₀(1 - p₀) / n)

Theorems

Central Limit Theorem

Suitable Grade Level

College/University Level