In a test of the hypothesis Ho: µ= 10 versus Ha: u # 10, a sample of n= 50 observations possessed mean x = 10.7 and standard deviation s = 2.9. Find and interpret the p-value for this test. The p-value for this test is (Round to four decimal places as needed.) Interpret the result. Choose the correct answer below. O A. There is sufficient evidence to reject Ho for a>0.09. O B. There is sufficient evidence to reject Ho for a< 0.09. OC. There is insufficient evidence to reject Ho for a = 0.15. O D. There is insufficient evidence to reject Ho for a> 0.09.
Continuous Probability Distributions
Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.
Normal Distribution
Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!
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![### Hypothesis Testing Example
In a test of the hypothesis \( H_0: \mu = 10 \) versus \( H_a: \mu \neq 10 \), a sample of \( n = 50 \) observations possessed mean \( \bar{x} = 10.7 \) and standard deviation \( s = 2.9 \). Find and interpret the p-value for this test.
1. **Step 1: Calculate the test statistic**
\[
t = \frac{\bar{x} - \mu_0}{s / \sqrt{n}}
\]
where \( \bar{x} = 10.7 \), \( \mu_0 = 10 \), \( s = 2.9 \), and \( n = 50 \).
2. **Step 2: Determine the p-value**
Calculate the p-value from the test statistic using the appropriate distribution (t-distribution with \( n - 1 \) degrees of freedom).
3. **Next, you are required to fill in the calculated p-value:**
\[
\text{The p-value for this test is } \_\_\_\_ . \text{ (Round to four decimal places as needed.)}
\]
4. **Step 3: Interpret the result. Choose the correct answer below:**
\[
\text{A. There is sufficient evidence to reject } H_0 \text{ for } \alpha > 0.09.
\]
\[
\text{B. There is sufficient evidence to reject } H_0 \text{ for } \alpha < 0.09.
\]
\[
\text{C. There is insufficient evidence to reject } H_0 \text{ for } \alpha = 0.15.
\]
\[
\text{D. There is insufficient evidence to reject } H_0 \text{ for } \alpha > 0.09.
\]
**Explanation:**
- Choice **A** is correctly selected on the screen, indicating that the p-value calculated is greater than 0.09, suggesting that there is sufficient evidence to reject the null hypothesis \( H_0 \) when the significance level \( \alpha \) is greater than 0.09.
- Each choice reflects a possible interpretation of the p-value in relation to the significance level \(](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4d6ce828-7421-4579-a347-7b809a44673d%2F83469fc7-c0e0-4dff-b61e-1b912888cf66%2Fqx3vwa5_processed.png&w=3840&q=75)

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