Women athletes at a certain university have a long-term graduation rate of 67%. Over the past several years, a random sample of 38 women athletes at the school showed that now less than 67% ? Use a 1% level of significance. LUSE SALT (a) What is the level of significance? (b) State the null and alternate hypotheses. O Ho: P = 0.67; H₁: p < 0.67 O Ho: P = 0.67; H₁: P 0.67

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**Statistical Analysis of Graduation Rates for Women Athletes**

Women athletes at a certain university have a long-term graduation rate of 67%. Over the past several years, a random sample of 38 women athletes at the school showed that 21 eventually graduated. Does this indicate that the population proportion of women athletes who graduate from the university is now less than 67%? Use a 1% level of significance.

**(a)** What is the level of significance?

- 0.01 or 1%

**(b)** State the null and alternate hypotheses.

- \( H_0: p = 0.67; H_1: p < 0.67 \)
- \( H_0: p > 0.67; H_1: p = 0.67 \)
- \( H_0: p = 0.67; H_1: p \ne 0.67 \)
- \( H_0: p < 0.67; H_1: p = 0.67 \)

**What sampling distribution will you use?**

- The standard normal, since np ≤ 5 and nq ≤ 5.
- The Student’s t, since np > 5 and nq > 5.
- The Student’s t, since np ≤ 5 and nq ≤ 5.
- The standard normal, since np > 5 and nq > 5. (Selected)

**What is the value of the sample test statistic?** (Round your answer to two decimal places.)

**(c)** Find the P-value of the test statistic. (Round your answer to four decimal places.)

**Sketch the sampling distribution and show the area corresponding to the P-value.**

(Four standard normal distribution curves are shown, each with a shaded area under the left tail.)

**(d)** Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis? Are the data statistically significant at the 1% level?

- At α = 0.01 level, we reject the null hypothesis and conclude the data are statistically significant.
- At α = 0.01 level, we fail to reject the null hypothesis and conclude the data are not statistically significant.
- At α = 0.10 level, we fail to reject the null hypothesis and conclude the data are statistically significant.
- At α = 0.
Transcribed Image Text:**Transcription for Educational Website** **Statistical Analysis of Graduation Rates for Women Athletes** Women athletes at a certain university have a long-term graduation rate of 67%. Over the past several years, a random sample of 38 women athletes at the school showed that 21 eventually graduated. Does this indicate that the population proportion of women athletes who graduate from the university is now less than 67%? Use a 1% level of significance. **(a)** What is the level of significance? - 0.01 or 1% **(b)** State the null and alternate hypotheses. - \( H_0: p = 0.67; H_1: p < 0.67 \) - \( H_0: p > 0.67; H_1: p = 0.67 \) - \( H_0: p = 0.67; H_1: p \ne 0.67 \) - \( H_0: p < 0.67; H_1: p = 0.67 \) **What sampling distribution will you use?** - The standard normal, since np ≤ 5 and nq ≤ 5. - The Student’s t, since np > 5 and nq > 5. - The Student’s t, since np ≤ 5 and nq ≤ 5. - The standard normal, since np > 5 and nq > 5. (Selected) **What is the value of the sample test statistic?** (Round your answer to two decimal places.) **(c)** Find the P-value of the test statistic. (Round your answer to four decimal places.) **Sketch the sampling distribution and show the area corresponding to the P-value.** (Four standard normal distribution curves are shown, each with a shaded area under the left tail.) **(d)** Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis? Are the data statistically significant at the 1% level? - At α = 0.01 level, we reject the null hypothesis and conclude the data are statistically significant. - At α = 0.01 level, we fail to reject the null hypothesis and conclude the data are not statistically significant. - At α = 0.10 level, we fail to reject the null hypothesis and conclude the data are statistically significant. - At α = 0.
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