Question

The federal government recently granted funds for a special program designed to reduce crime in high-crime...

The federal government recently granted funds for a special program designed to reduce crime in high-crime areas. A study of the results of the program in high-crime areas of Miami, Florida, are being examined to test the effectiveness of the program. The difference in crimes reported is calculated as (crimes after - crimes before). You want to test whether the crimes reported before is less than those reported after and, thus, the hypotheses are as follows: Null Hypothesis: ?D ? 0, Alternative Hypothesis: ?D < 0. You perform a paired sample t-test and see a p-value of 0.9633. What is the appropriate conclusion?

Question 13 options:

1)

The average difference in crimes reported is significantly less than 0. The average number of crimes reported was higher before the program.

2)

We did not find enough evidence to say there was a significantly positive average difference in crimes reported. The program does not appear to have been effective.

3)

We did not find enough evidence to say there was a significantly negative average difference in crimes reported. The program does not appear to have been effective.

4)

We did not find enough evidence to say the average difference in crimes reported was not 0. The program does not appear to have been effective.

5)

The average difference in crimes reported is greater than or equal to 0.

Homework Answers

Answer #1

We reject H0 if p-value is less than level of significance.

In this case p-value is very high i.e. 0.9633. This means we do not reject H0 and reject the alternative hypothesis, i.e., the average difference is negative. This means the program does not appear to have been effective. Hence, the answer is

3)  We did not find enough evidence to say there was a significantly negative average difference in crimes reported. The program does not appear to have been effective.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The federal government recently granted funds for a special program designed to reduce crime in high-crime...
The federal government recently granted funds for a special program designed to reduce crime in high-crime areas. A study of the results of the program in high-crime areas of Miami, Florida, are being examined to test the effectiveness of the program. The difference in crimes reported is calculated as (crimes after - crimes before). You want to test whether the crimes reported after is less than those reported before and, thus, the hypotheses are as follows: Null Hypothesis: μD ≥...
The federal government recently granted funds for a special program designed to reduce crime in high-crime...
The federal government recently granted funds for a special program designed to reduce crime in high-crime areas. A study of the results of the program in high-crime areas of Miami, Florida, are being examined to test the effectiveness of the program. The difference in crimes reported is calculated as (crimes after - crimes before). You want to test whether the crimes reported after is greater than those reported before and, thus, the hypotheses are as follows: Null Hypothesis: μD ≤...
Question 6 (1 point) The federal government recently granted funds for a special program designed to...
Question 6 (1 point) The federal government recently granted funds for a special program designed to reduce crime in high-crime areas. A study of the results of the program in high-crime areas of Miami, Florida, are being examined to test the effectiveness of the program. The difference in crimes reported is calculated as (crimes after - crimes before). You want to test whether the average number of crimes reported after are greater than the average number of crimes reported before....
4. The federal government recently granted funds for a special program designed to reduce crime in...
4. The federal government recently granted funds for a special program designed to reduce crime in high-crime areas. A suudy of the resu;lts of the program in eight high-crime areas yeilded the following results:    Number of crimes by area Before 14 7 4 5 17 12 8 9 After    2 7 3 6    8 13 3 5 Using this as a dependent testing and the 5% significance level, can one conclude that there has been a decrease...
Question 13 (1 point) A statistics professor wants to examine the number of hours that seniors...
Question 13 (1 point) A statistics professor wants to examine the number of hours that seniors and freshmen study for the final. Specifically, the professor wants to test if the average number of hours that seniors study is greater than the average number of hours that freshmen study. If the seniors are considered group 1 and the freshmen are considered group 2, what are the hypotheses for this scenario? Question 13 options: 1) HO: μ1 = μ2 HA: μ1 ≠...
Question 7 (1 point) You are interested in whether the average lifetime of Duracell AAA batteries...
Question 7 (1 point) You are interested in whether the average lifetime of Duracell AAA batteries is less than the average lifetime of Energizer AAA batteries. You lay out your hypotheses as follows: Null Hypothesis: μ1 ≥ μ2, Alternative Hypothesis: μ1 < μ2 (Duracell = Group 1, Energizer = Group 2). You perform an experiment on 23 randomly selected Duracell AAA batteries and 33 randomly selected Energizer AAA batteries and test them using a battery drainer. The Duracells had an...
You are looking for a way to incentivize the sales reps that you are in charge...
You are looking for a way to incentivize the sales reps that you are in charge of. You design an incentive plan as a way to help increase in their sales. To evaluate this innovative plan, you take a random sample of your reps, and their weekly incomes before and after the plan were recorded. You calculate the difference in income as (after incentive plan - before incentive plan). You perform a paired samples t-test with the following hypotheses: Null...
A high school principle currently encourages students to enroll in a specific SAT prep program that...
A high school principle currently encourages students to enroll in a specific SAT prep program that has a reputation of improving score by 50 points on average. A new SAT prep program has been released and claims to be better than their current program. The principle is thinking of advertising this new program to students if there is enough evidence at the 5% level that their claim is true. The principle tests the following hypotheses: H0:μ=50 points HA:μ>50 points where...
Will eating oatmeal promote healthy levels of cholesterol? A consumer reports analyst took a sample of...
Will eating oatmeal promote healthy levels of cholesterol? A consumer reports analyst took a sample of 44 people with high cholesterol and asked them to eat oatmeal once a day for 3 months. Measurements were taken of their cholesterol levels before and after the 3 months in mg/dl. The analyst is testing whether the cholesterol levels after the diet are greater than the cholesterol levels before the diet. The hypotheses for this test are as follows: Null Hypothesis: μD ≤...
****PLEASE ANSWER ALL QUESTIONS**** Question 12 (1 point) A medical researcher wants to determine if the...
****PLEASE ANSWER ALL QUESTIONS**** Question 12 (1 point) A medical researcher wants to determine if the average hospital stay of patients that undergo a certain procedure is greater than 8.7 days. The hypotheses for this scenario are as follows: Null Hypothesis: μ ≤ 8.7, Alternative Hypothesis: μ > 8.7. If the researcher takes a random sample of patients and calculates a p-value of 0.0942 based on the data, what is the appropriate conclusion? Conclude at the 5% level of significance....