researcher claims that the stomachs of blue crabs from Location A contain more fish than the stomachs of blue crabs from L ean of 194 milligrams of fish and a standard deviation of 37 milligrams. The stomach contents of a sample of 8 blue crabs fr lligrams. At a = 0.05, can you support the researcher's claim? Assume the population variances are equal. Complete parts ( Identify the null and alternative hypotheses. Choose the correct answer below. A. Ho: H₁-H₂ <0 Ha Hi-H2=0 с. Но н1 - 2 20 Ha: H1-H₂ <0 Find the standardized test statistic for H₁-H₂ IFCER OB. Ho H На 11 - OD. Ho Ha: H1

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### Statistical Hypothesis Testing Example

A researcher claims that the stomachs of blue crabs from Location A contain more fish than the stomachs of blue crabs from Location B. The stomach contents of a sample of 14 blue crabs from Location A contain a mean of 194 milligrams of fish and a standard deviation of 37 milligrams. The stomach contents of a sample of 8 blue crabs from Location B contain a mean of 184 milligrams of fish and a standard deviation of 44 milligrams. At \(\alpha = 0.05\), can you support the researcher's claim? Assume the population variances are equal. Complete parts (a) through (d) below.

**(a) Identify the null and alternative hypotheses. Choose the correct answer below.**

- A. \( H_0: \mu_1 - \mu_2 < 0 \)
     \( H_a: \mu_1 - \mu_2 = 0 \)
- B. \( H_0: \mu_1 - \mu_2 \leq 0 \)
     \( H_a: \mu_1 - \mu_2 > 0 \)
- C. \( H_0: \mu_1 - \mu_2 \geq 0 \)
     \( H_a: \mu_1 - \mu_2 < 0 \)
- D. \( H_0: \mu_1 - \mu_2 = 0 \)
     \( H_a: \mu_1 - \mu_2 \neq 0 \)

**(b) Find the standardized test statistic for \( \mu_1 - \mu_2 \)**

\[
t = \_\_\_ \
\text{(Round to three decimal places as needed.)}
\]

**(c) Calculate the P-value.**

\[
P = \_\_\_ \
\text{(Round to four decimal places as needed.)}
\]

**(d) State the conclusion.**

\[
H_0 \: \text{There} \: \_\_\_\_\_\_ \: \text{enough evidence at the 5% level of significance to support the researcher's claim.}
\]

### Explanation

The task involves determining whether there is statistical evidence to support the researcher's claim at a 5% significance level. 

1. **Hypoth
Transcribed Image Text:### Statistical Hypothesis Testing Example A researcher claims that the stomachs of blue crabs from Location A contain more fish than the stomachs of blue crabs from Location B. The stomach contents of a sample of 14 blue crabs from Location A contain a mean of 194 milligrams of fish and a standard deviation of 37 milligrams. The stomach contents of a sample of 8 blue crabs from Location B contain a mean of 184 milligrams of fish and a standard deviation of 44 milligrams. At \(\alpha = 0.05\), can you support the researcher's claim? Assume the population variances are equal. Complete parts (a) through (d) below. **(a) Identify the null and alternative hypotheses. Choose the correct answer below.** - A. \( H_0: \mu_1 - \mu_2 < 0 \) \( H_a: \mu_1 - \mu_2 = 0 \) - B. \( H_0: \mu_1 - \mu_2 \leq 0 \) \( H_a: \mu_1 - \mu_2 > 0 \) - C. \( H_0: \mu_1 - \mu_2 \geq 0 \) \( H_a: \mu_1 - \mu_2 < 0 \) - D. \( H_0: \mu_1 - \mu_2 = 0 \) \( H_a: \mu_1 - \mu_2 \neq 0 \) **(b) Find the standardized test statistic for \( \mu_1 - \mu_2 \)** \[ t = \_\_\_ \ \text{(Round to three decimal places as needed.)} \] **(c) Calculate the P-value.** \[ P = \_\_\_ \ \text{(Round to four decimal places as needed.)} \] **(d) State the conclusion.** \[ H_0 \: \text{There} \: \_\_\_\_\_\_ \: \text{enough evidence at the 5% level of significance to support the researcher's claim.} \] ### Explanation The task involves determining whether there is statistical evidence to support the researcher's claim at a 5% significance level. 1. **Hypoth
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