# PSY 315 Week 2 Week Two Practice Problems Worksheet

https://uopcourses.com/category/psy-315/

PSY 315 Week 2 Week Two Practice Problems Worksheet

PSY 315 Week 2 Week Two Practice Problems Worksheet

**Resource:***Statistics**for Psychology***Complete****the Week Two Practice Problems Worksheet.****Click**the Assignment Files tab to submit your assignment.*Note.*Computation methods may include the use of Microsoft® Excel®, SPSS™, Lotus®, SAS®, Minitab®, or by-hand computation.Week Two Practice Problems Prepare a written response to the following questions.**Chapter 2**- For the following scores, find the mean, median, sum of squared deviations, variance, and standard deviation:

- A psychologist interested in political behavior measured the square footage of the desks in the official office for four U.S. governors and of four chief executive officers (CEOs) of major U.S. corporations. The figures for the governors were 44, 36, 52, and 40 square feet. The figures for the CEOs were 32, 60, 48, 36 square feet.

- Figure the means and standard deviations for the governors and CEOs.
- Explain, to a person who has never had a course in statistics, what you have done.
- Note the waus in which the means and standard deviations differ, and speculate on the possible meaning of these differences, presuming that they are representative of U.S. governors and large corporations’ CEOs in general.

- Radel and colleagues (2011) conducted a study of how feeling overly controlled makes you desire—even unconsciously—more freedom. In their study, 52 Canadian undergraduates played a video game in a laboratory and were randomly assigned to either:
- an automony deprivation condition, in which they were told to follow instructions precisely, constantly given instructions over a loudspeaker, and carefully observed on everything they did.
- a neutral condition, which was much more laid back.

*M**SD**M***Autonomy-related words782211857243Neutral words835258841301***SD***Chapter 3**- On a standard measure of hearing ability, the mean is 300 and the standard deviation is 20. Give the raw scores for persons whose
*Z*scores for persons who score 340, 310, and 260. Give the raw scores for persons whose*Z*scores on this test are 2.4, 1.5, and -4.5.

- The amount of time it takes to recover physiologically from a certain kind of sudden noise is found to be normally distributed with a mean of 80 seconds and a standard deviation of 10 seconds. Using the 50%–34%–14% figures, approximately what percentage of scores (on time to recover) will be:

- Suppose that the scores of architects on a particular creativity test are normally distributed. Using a normal curve table, what percentage of architects have
*Z*scores:

- Suppose that you are designing an instrument panel for a large industrial machine. The machine requires the person using it to reach 2 feet from a particular position. The reach from this position for adult women is known to have a mean of 2.8 feet with a standard deviation of .5. The reach for adult men is known to have a mean of 3.1 feet with a standard deviation of .6. Both women’s and men’s reach from this position is normally distributed. If this design is implemented:

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

You'll get 1 file (40.5KB)