Can you please help me with these. I can not get these and I am trying to study for the clep exam. Do not do the circled problems only the ones listed below. Thank you for help. Please show step so that I can understand better.

129

1. a) 6, b) 12, c) 16, d) 20
2. a) 24, b) 26
3. a) 35, b) 36
4. a) 46, b) 48

1. For a sample with a mean of M=45, a score of X=59 corresponds to z=2.00. What is the sample standard deviation?
2. In a population of exam scores, a score of X=48 corresponds to z=+1.00 and a score of X=36 corresponds to z=-0.50. Find the mean and standard deviation for the population.
3. For each of the following popul

1. A mail order company tracks the number of returns it receives each day. Information for the last 50 days shows
Number of returns Number of days
0 - 99 6
100 - 199 20
200 - 299 15
300 or more 9
a. How many sample points are there?
b. List and

For a particular sample of 50 scores on a psychology exam, the following results were obtained.
First quartile = 67 Third quartile = 91 Standard deviation = 9 Range = 48
Mean = 75 Median = 80 Mode = 81 Midrange = 74
a)What score was earned by more students than any other score? Why?
b)How many students scored b

I have to develop a research design for a pretend study. It will be quantitative to study the effects of linguistic modification on nursing exams for one year. The original exam and the modified exam will be randomly assigned to students (native English speakers and English as a second language students). There would be scores f

In order to determine whether or not a driver's education course improves the scores on a driving exam, a sample of six students were given the exam before and after taking the course. The results are shown below:
Score Score
Student Before the Course After the Course
1 83 87
2

2. A math test was given with the following results:
80, 69, 92, 75, 88, 37, 98, 92, 90, 81, 32, 50, 59, 66, 67, 66
Find the range, standard deviation, and variance for the scores.
3. For a particular sample of 50 scores on a psychology exam, the following results were obtained.
Mean = 78 Midrange = 72 Third quartile = 94

Using your chosen topic (Exam Anxiety in Students), you are asked to write an alternative hypothesis and a null hypothesis for correlation analysis worked on in this unit's assignment. You will also need to distinguish the independent and dependent variables. At this time, review the Variable view within the dataset. In addition

In an effort to counteract student cheating, the professor of a large class created four versions of a midterm exam, distributing the four versions among the students in the class. After the exam, students from the class got together and petitioned to nullify the results on the grounds that the four versions were not equal in

The educational testing service (ETS) designs and administers the SAT exams. Recently the format of the exam changed and the claim has been made that the new exam can be completed in an average time of 120 minutes. A sample of 50 new exam times yielded an average time of 115 min. The standard deviation is assumed to be 2 minu