The recidivism rate for convicted sex offenders is 16%. A warden suspects that this percent is higher if the sex offender is also a drug addict. Of the 378 convicted sex offenders who were also drug addicts, 72 of them became repeat offenders. What can be concluded at the a = 0.10 level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ? v Select an answer v (please enter a decimal) H1:? v Select an answer ♥ (Please enter a decimal) c. The test statistic ? v = (please show your answer to 3 decimal places.) d. The p-value = | (Please show your answer to 4 decimal places.) e. The p-value is ? v a f. Based on this, we should Select an answer v the null hypothesis. g. Thus, the final conclusion is that ... The data suggest the population proportion is not significantly higher than 16% at a = 0.10, so there is statistically significant evidence to conclude that the population proportion of convicted sex offender drug addicts who become repeat offenders is equal to 16%. O The data suggest the population proportion is not significantly higher than 16% at a = 0.10, so there is statistically insignificant evidence to conclude that the population proportion of

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The recidivism rate for convicted sex offenders is 16%. A warden suspects that this percentage is higher if the sex offender is also a drug addict. Of the 378 convicted sex offenders who were also drug addicts, 72 of them became repeat offenders. What can be concluded at the α = 0.10 level of significance? 

a. For this study, we should use [Select an answer].

b. The null and alternative hypotheses would be:
   - \( H_0: \) [Select an answer] (please enter a decimal)
   - \( H_1: \) [Select an answer] (Please enter a decimal)

c. The test statistic \( ? \) = ______ (please show your answer to 3 decimal places).

d. The p-value = ______ (Please show your answer to 4 decimal places.)

e. The p-value is [Select an answer] α.

f. Based on this, we should [Select an answer] the null hypothesis. 

g. Thus, the final conclusion is that …
   - \( \bigcirc \) The data suggest the population proportion is not significantly higher than 16% at \( \alpha = 0.10 \), so there is statistically significant evidence to conclude that the population proportion of convicted sex offender drug addicts who become repeat offenders is equal to 16%.
   - \( \bigcirc \) The data suggest the population proportion is not significantly higher than 16% at \( \alpha = 0.10 \), so there is statistically insignificant evidence to conclude that the population proportion of convicted sex offender drug addicts who become repeat offenders is higher than 16%.
   - \( \bigcirc \) The data suggest the population proportion is significantly higher than 16% at \( \alpha = 0.10 \), so there is statistically significant evidence to conclude that the population proportion of convicted sex offender drug addicts who become repeat offenders is higher than 16%.
Transcribed Image Text:The recidivism rate for convicted sex offenders is 16%. A warden suspects that this percentage is higher if the sex offender is also a drug addict. Of the 378 convicted sex offenders who were also drug addicts, 72 of them became repeat offenders. What can be concluded at the α = 0.10 level of significance? a. For this study, we should use [Select an answer]. b. The null and alternative hypotheses would be: - \( H_0: \) [Select an answer] (please enter a decimal) - \( H_1: \) [Select an answer] (Please enter a decimal) c. The test statistic \( ? \) = ______ (please show your answer to 3 decimal places). d. The p-value = ______ (Please show your answer to 4 decimal places.) e. The p-value is [Select an answer] α. f. Based on this, we should [Select an answer] the null hypothesis. g. Thus, the final conclusion is that … - \( \bigcirc \) The data suggest the population proportion is not significantly higher than 16% at \( \alpha = 0.10 \), so there is statistically significant evidence to conclude that the population proportion of convicted sex offender drug addicts who become repeat offenders is equal to 16%. - \( \bigcirc \) The data suggest the population proportion is not significantly higher than 16% at \( \alpha = 0.10 \), so there is statistically insignificant evidence to conclude that the population proportion of convicted sex offender drug addicts who become repeat offenders is higher than 16%. - \( \bigcirc \) The data suggest the population proportion is significantly higher than 16% at \( \alpha = 0.10 \), so there is statistically significant evidence to conclude that the population proportion of convicted sex offender drug addicts who become repeat offenders is higher than 16%.
**Transcription and Explanation of Statistical Concepts:**

**h. Interpret the p-value in the context of the study.**

- If the population proportion of convicted sex offender drug addicts who become repeat offenders is 16% and if another 378 convicted sex offender drug addicts are surveyed, then there would be a 5.3% chance that more than 19% of the 378 convicted sex offender drug addicts in the study will become repeat offenders.

- If the sample proportion of convicted sex offender drug addicts who become repeat offenders is 19% and if another 378 convicted sex offender drug addicts are observed, then there would be a 5.3% chance of concluding that more than 16% of all convicted sex offender drug addicts become repeat offenders.

- There is a 5.3% chance of a Type I error.

- There is a 5.3% chance that more than 16% of all convicted sex offender drug addicts become repeat offenders.

**i. Interpret the level of significance in the context of the study.**

- If the population proportion of convicted sex offender drug addicts who become repeat offenders is 16% and if another 378 convicted sex offender drug addicts are observed, then there would be a 10% chance that we would end up falsely concluding that the proportion of all convicted sex offender drug addicts who become repeat offenders is higher than 16%.

- There is a 10% chance that Lizard People aka "Reptilians" are running the world.

- If the population proportion of convicted sex offender drug addicts who become repeat offenders is higher than 16% and if another 378 convicted sex offender drug addicts are observed, then there would be a 10% chance that we would end up falsely concluding that the proportion of all convicted sex offender drug addicts who become repeat offenders is equal to 16%.

- There is a 10% chance that the proportion of all convicted sex offender drug addicts who become repeat offenders is higher than 16%.

**Graph/Diagram Explanation:**

The text does not contain any graphs or diagrams. It outlines statistical interpretations, particularly focusing on understanding p-values and levels of significance in a hypothetical study context.
Transcribed Image Text:**Transcription and Explanation of Statistical Concepts:** **h. Interpret the p-value in the context of the study.** - If the population proportion of convicted sex offender drug addicts who become repeat offenders is 16% and if another 378 convicted sex offender drug addicts are surveyed, then there would be a 5.3% chance that more than 19% of the 378 convicted sex offender drug addicts in the study will become repeat offenders. - If the sample proportion of convicted sex offender drug addicts who become repeat offenders is 19% and if another 378 convicted sex offender drug addicts are observed, then there would be a 5.3% chance of concluding that more than 16% of all convicted sex offender drug addicts become repeat offenders. - There is a 5.3% chance of a Type I error. - There is a 5.3% chance that more than 16% of all convicted sex offender drug addicts become repeat offenders. **i. Interpret the level of significance in the context of the study.** - If the population proportion of convicted sex offender drug addicts who become repeat offenders is 16% and if another 378 convicted sex offender drug addicts are observed, then there would be a 10% chance that we would end up falsely concluding that the proportion of all convicted sex offender drug addicts who become repeat offenders is higher than 16%. - There is a 10% chance that Lizard People aka "Reptilians" are running the world. - If the population proportion of convicted sex offender drug addicts who become repeat offenders is higher than 16% and if another 378 convicted sex offender drug addicts are observed, then there would be a 10% chance that we would end up falsely concluding that the proportion of all convicted sex offender drug addicts who become repeat offenders is equal to 16%. - There is a 10% chance that the proportion of all convicted sex offender drug addicts who become repeat offenders is higher than 16%. **Graph/Diagram Explanation:** The text does not contain any graphs or diagrams. It outlines statistical interpretations, particularly focusing on understanding p-values and levels of significance in a hypothetical study context.
Expert Solution
Step 1

Given :

x = 72

n = 378

p^ = xn

p^ = 72378

p^ = 0.191

α = 0.1

a)

For this study, we should use one-sample proportion test.

b)

H0 :p = 0.16

H1 :p > 0.16

Step 2

c) Test Statistic :

z = 0.191-0.160.16×0.84378

z = 0.03050.0189

z = 1.616

d)

P-value  = 0.053

e)

P-value is less than α.

f)

Based on this , we should reject the null hypothesis.

g)

C. The data suggest the population proportion is significantly higher than  16% at α = 0.10, so there is statistically significant evidence to conclude that the population proportion ofconvicted sex offender drug addicts who become repeat offenders is higher than 16%.

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