Suppose Nielsen would like to test the hypothesis that people spend an average of 156 hours a month watching traditional TV. A random sample of 32 people watched an average of 140.7 hours of TV last month with a sample standard deviation of 32.1 hours. Test this hypothesis using α = 0.02 with the p-value approach.

A college entrance exam company determined that a score of 25 on the mathematics portion of the exam suggests that a student is ready for​ college-level mathematics. To achieve this​ goal, the company recommends that students take a core curriculum of math courses in high school. Suppose a random sample of 150 students who completed this core set of courses results in a mean math score of 25.4 on the college entrance exam with a standard deviation of 3.2. Do these results suggest that students who complete the core curriculum are ready for​ college-level mathematics? That​ is, are they scoring above 25 on the mathematics portion of the​ exam? a)use the​ P-value approach at the α=0.10 level of significance to test the hypotheses. Identify the test statistic. b) identify the critical value c) conclude, accept or reject? is there sufficient evidence?

It is known that rats run a standard maze in an average of 25.4 seconds. A researcher is trying to see if a drug affects the running time of rats. In a random sample of 43 rats, it is found that they ran the maze in 23.6 seconds with a standard deviation of 5.1 seconds. Is this good evidence at the 2% level that the running time is different after taking the drug? Provide a 1-2 sentence explanation of what your results mean in addition to appropriately stating your results in a complete sentence. Is there anything about this problem suggesting that the methods we learned should not be applied?

A college entrance exam company determined that a score of 24 on the mathematics portion of the exam suggests that a student is ready for college-level mathematics. To achieve this goal, the company recommends that students take a core curriculum of math courses in high school. Suppose a random sample of 250 students who completed this core set of courses results in a mean math score of 24.4 on the college entrance exam with a standard deviation of 3.1. Do these results suggest that students who complete the core curriculum are ready for college-level mathematics? That is, are they scoring above 24 on the mathematics portion of the exam? Complete parts a) through d) below. a) State the appropriate null and alternative hypotheses. Fill in the correct answers below. The appropriate null and alternative hypotheses are Ho V versus H₁: 4 Help me solve this View an example Get more help. Check answer D # Type here to search 1:18 PM ## 6/18/2022 77 Q $ 4 D V 96 5 T B Oi 0 6 Y H N U 8 M hp K a…