# Question: Refer to Exercise 8 3 Suppose 100 people attend boot camp

Refer to Exercise 8.3. Suppose 100 people attend boot camp and 44 of them return to prison within three years). The population recidivism rate for the whole state is 40%.

a. What is p`, the sample proportion of successes? (It is somewhat odd to call returning to prison a success.)

b. What is p0, the hypothetical proportion of success under the null hypothesis?

c. What is the value of the test statistic? Explain in context.

a. What is p`, the sample proportion of successes? (It is somewhat odd to call returning to prison a success.)

b. What is p0, the hypothetical proportion of success under the null hypothesis?

c. What is the value of the test statistic? Explain in context.

**View Solution:**## Answer to relevant Questions

Refer to Exercise 8.4. Suppose a sample of 600 surgeries with the new scrub shows 18 infections. Find the value of the test statistic, z, and explain its meaning in context. The old infection rate was 4%. A 2003 study of dreaming found that out of a random sample of 113 people, 92 reported dreaming in color. However, the proportion of people who reported dreaming in color that was established in the 1940s was 0.29 ...The percentage of female CEOs in 2013 in Fortune 500 companies was 4%, according to Time Magazine (March 18, 2013). Suppose a student did a survey of 250 randomly selected large companies (not Fortune 500 companies), and 15 ...Samuel Morse determined that the percentage of t’s in the English language in the 1800s was 9%. A random sample of 600 letters from a current newspaper contained 48 t’s. Using the 0.10 level of significance, test the ...If we do not reject the null hypothesis, is it valid to say that we accept the null hypothesis? Why or why not?Post your question