The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude toward school, and study habits of students. Scores range from 0 to 200. A selective private college gives the SSHA to an SRS of both male and female first-year students. The data for the women are as follows: 154 109 137 115 152 140 154 178 101 103 126 126 137 165 165 129 200 148 Here are the scores of the men: 108 140 114 91 180 115 126 92 169 146 109 132 75 88 113 151 70 115 187 104

Most studies have found that the mean SSHA score for men is lower than the mean score in a comparable group of women. Is this true for first-year students at this college? Use a 1% significance level.

(a) Hypotheses and results:

(b) Draw a picture and label p-value and horizontal axis:

(c) Draw a conclusion. Don’t just accept or reject. Say what it means in terms of this problem.

1. You wish to see if a difference exists in the average SAT score for students at two local colleges. A random sample of 200 students from College A had an average SAT score of 1641.7 with a standard deviation of 28.4. A random sample of 178 students from College B had an average SAT score of 1629.8 with a standard deviation of 25.6. Does this show, at 95% confidence, a difference in the average SAT scores? Be sure to state the interval.

   		I am 95% confident that the difference in average SAT scores for the two colleges is between 5.8773 and 11.5287. We failed to show a difference.
   		I am 95% confident that the difference in average SAT scores for the two collegesis between 5.8773 and 11.5287. The evidence suggests the averages are different.
   		I am 95% confident that the difference in average SAT scores for the two collegesis between 6.4386 and 17.361. We failed to show a difference.
   		I am 95% confident that the difference in average SAT scores for the two collegesis between 6.4386 and 17.361. The evidence suggests the averages are different.

A hypothetical data shows that, in a year, of all the adult population, 20,500,000 were employed, 755,000 were unemployed, 45,000 were workers with part-time jobs looking for full-time jobs, 25,000 were discouraged workers and 8,500,000 were not in the labor force.

1. Use the above information and calculate the labor force participation rate and the unemployment rate.
2. Suppose that the natural rate of unemployment is 1.5 percent and the potential GDP is RM 850 billion, how much would be the actual GDP achieved in the above case?
3. Suppose that 2,500,000 students graduated from higher education institutions and begin to look for jobs. Ceteris paribus, determine the new unemployment rate if none of the students have found jobs yet. How this will change your answer in (b)?
4. Now suppose that 1,500,000 of the students whom graduated in (c) find jobs and the remaining are not yet employed. Ceteris paribus, determine the new unemployment rate. Clearly show your working for all calculations.
5. Simulate a scenario in which both employment and unemployment could both possibly increase.

Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate the mean score ?μ of those who took the MCAT on your campus, you will obtain the scores of an SRS of students. The scores follow a Normal distribution, and from published information you know that the standard deviation is 10.810.8 . Suppose that, unknown to you, the mean score of those taking the MCAT on your campus is 495495 .

In answering the questions, use ?z‑scores rounded to two decimal places.

(a) If you choose one student at random, what is the probability that the student's score is between 490490 and 500500 ? Use Table A, or software to calculate your answer.

(Enter your answer rounded to four decimal places.)

probability:

(b) You sample 3636 students. What is the standard deviation of the sampling distribution of their average score ?¯x¯ ? (Enter your answer rounded to two decimal places.)

standard deviation:

(c) What is the probability that the mean score of your sample is between 490490 and 500500 ? (Enter your answer rounded to four decimal places.)

probability:

A) Hypothesis Testing - Type I and Type II errors: You test the claim that the mean gas mileage of all cars of a certain make is less than 29 miles per gallon (mpg). You perform this test at the 0.10 significance level. What is the probability of a Type I error for this test?

B)Sleep: Assume the general population gets an average of 7 hours of sleep per night. You randomly select 40 college students and survey them on their sleep habits. From this sample, the mean number of hours of sleep is found to be 6.69 hours with a standard deviation of 0.40 hours. You claim that college students get less sleep than the general population. That is, you claim the mean number of hours of sleep for all college students is less than 7 hours. Test this claim at the 0.01 significance level.
What is the test statistic? Round your answer to 2 decimal places. t_x=

What is the critical value of t? Use the answer found in the t-table or round to 3 decimal places.
t_α =

Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate the mean score ?μ of those who took the MCAT on your campus, you will obtain the scores of an SRS of students. The scores follow a Normal distribution, and from published information you know that the standard deviation is 10.410.4 . Suppose that, unknown to you, the mean score of those taking the MCAT on your campus is 500500 .

In answering the questions, use ?z‑scores rounded to two decimal places.

(a) If you choose one student at random, what is the probability that the student's score is between 495495 and 505505 ? Use Table A, or software to calculate your answer.

(Enter your answer rounded to four decimal places.)

probability:

(b) You sample 2525 students. What is the standard deviation of the sampling distribution of their average score ?¯x¯ ? (Enter your answer rounded to two decimal places.)

standard deviation:

(c) What is the probability that the mean score of your sample is between 495495 and 505505 ? (Enter your answer rounded to four decimal places.)

probability:

One-Way ANOVA – CALCULATIONS IN VASSARSTATS.NET

A statistics instructor who does lectures, class activities and assigns homework assignments, wonders if it is necessary for students to complete the entire homework assignment until it is correct for them to learn the material or whether just working on the homework is sufficient (or even needed). She randomly assigns students to one of three groups: a “no homework” group, a “must answer each question” group, and a “must get all questions correct” group (5 students per group). She then examines their next test scores for number of errors and analyzes the data with α = .05.

DATA

The scale of measurement for the independent variable is ___________.

Select from Nominal, Ordinal, Interval, Ratio

The scale of measurement for the Dependent Variable is ___________.

Select from Nominal, Ordinal, Interval, Ratio

Are the results of this study statistically significant? _________

How would you write the results in a writeup? _______________________________

Show how the results are likely to be graphed

Many companies often offer discounts to senior citizens and students. For instance, Beside its regular prime membership, Amazon also offers a discounted membership program to students.

“Amazon Prime Student is a Prime membership program created for college students. As a Prime Student member, you receive a six-month trial that include-es Free Two-Day Shipping on over 50 million items, unlimited streaming of Prime movies and TV shows, unlimited photo storage with Prime Photos, 20% off pre-order and new release video games, exclusive deals and savings, and more! After your six-month trial ends, your Prime Student membership makes you eligible to receive 50% off Amazon Prime, and includes access to all Prime benefits.”

1. Discuss why Amazon create a Prime student membership. What are benefits of such a pricing strategy?
2. Customers who sign -up for Prime Student will be required to verify their student status via a .edu e-email. Discuss why Amazon requires the verification.

Acc105

Chapter 11 - Cost Behavior ( discussion board):

Please provide your thoughts on this simple example of cost behavior and then add an example of your own.

What do you typically pay for a large pizza? (There is no right or wrong price - just pick a reasonable price)
What would be the cost per student if two students buy that pizza?
What if four students buy a large pizza?
What does this illustrate about why average fixed costs change on a per unit basis?

Let's add the fact that a beverage costs $1 and each student eating the pizza has one beverage. So, if two people were eating the pizza, the total beverage bill would come to $2; if four people, $4. The cost per beverage remains the same, but the total cost depends on the number of people ordering a beverage.
What does this tell us about how total variable costs vary per units (or in this case students)?

Please provide another basic example of cost behavior (related to fixed or variable).

As an educator, you have been approached by the manager to assist with the moving of the unit currently on Floor 6 to Floor 4. This move is going to occur during the day and time that you and your learners are scheduled. The manager would appreciate your participation because with you and your learners, there will be sufficient assistance without having to pay significant overtime. While the learners will be moving the patients in their beds, they also will be moving equipment, bedside tables, infusion pumps, etc. to the other floor as well.

Although you, the educator, would like to help, several questions occur in your mind. These include the following.

• Although you want to help, what would be the learning activity objectives?
• What would the students learn from participating in the move?
• How would it be consistent with course outcomes?
• Is it ethical to require students to help?
• Should the faculty member schedule a simulation activity to avoid the situation?
• If you don't help with the move, how will the staff react and respond to future students?

Please debate the pros and cons in providing assistance to the floor during the move as a learning activity.