ANT 101 Ashford University Week 2 Nonsegregation and Racial Integration Discussion
September 9, 2021
Answer with 6-7 sentences per letter
September 9, 2021

Assuming that all students attend his class that day, how many students will the instructor select to complete his questionnaire?

University of Phoenix Material

 

Week 3 Practice Worksheet

 

Provide a response to the following questions.

 

Note: Each team member should compute the following questions and submit them to the Learning Team forum. The team should then discuss each team member’s answers to ascertain the correct answer for each question. Once your team has answered all the questions, submit a finalized team worksheet.

 

1.     On a standard measure of hearing ability, the mean is 300, and the standard deviation is 20. Provide the Z scores for persons whose raw scores are 340, 310, and 260. Provide the raw scores for persons whose Z scores on this test are 2.4, 1.5, and -4.5.

2.     Using the unit normal table, find the proportion under the standard normal curve that lies to the right of each of the following:

a.     z = 1.00

b.    z = -1.05

c.     z = 0

d.    z = 2.80

e.     = 1.96

 

3.     Suppose the scores of architects on a particular creativity test are normally distributed. Using a normal curve table (pp. 477–480 of the text), what percentage of architects have Z scores

a.     Above .10?

b.    Below .10?

c.     Above .20?

d.    Below .20?

e.     Above 1.10?

f.     Below 1.10?

g.    Above -.10?

h.     Below -.10?

 

 

4.     A statistics instructor wants to measure the effectiveness of his teaching skills in a class of 102 students (N = 102). He selects students by waiting at the door to the classroom prior to his lecture and pulling aside every third student to give him or her a questionnaire.

 

  1. Is this sample design an example of random sampling? Explain.
  2. Assuming that all students attend his class that day, how many students will the instructor select to complete his questionnaire?

 

 

5.     Suppose you were going to conduct a survey of visitors to your campus. You want the survey to be as representative as possible.

 

a.     How would you select the people to survey?

 

b.    Why would that be your best method?

 

Attachments:
application/msword iconpsy315r7_week_3_practice_worksheet.doc

 

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