PSY-3301 Chapter 5 MC Quiz (Set 9)
Question 1
5 out of 5 points
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Would you rather have an income (assume a normal distribution and you are greedy) _________.
Question 2
0 out of 5 points
An economics test was given and the following sample scores were recorded:
Individual
A
B
C
D
E
F
G
H
I
J
Score
12
12
7
10
9
12
13
8
9
8
The z score for individual G is _________.
Question 3
5 out of 5 points
The normal curve is _________.
Question 4
0 out of 5 points
The standard deviation of the z distribution equals _________.
Question 5
5 out of 5 points
A stockbroker has kept a daily record of the value of a particular stock over the years and finds that prices of the stock form a normal distribution with a mean of $8.52 with a standard deviation of $2.38.
What percentage of the distribution lies below $7.42.
Question 6
0 out of 5 points
In a normal distribution the z score for the mean equals _________.
Question 7
5 out of 5 points
You have just received your psychology exam grade and you did better than the mean of the exam scores. If so, the z transformed value of your grade must
Question 8
5 out of 5 points
A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90. The scores are normally distributed.
The percentile rank of a score of 667 is _________.
Question 9
5 out of 5 points
The mean of the z distribution equals _________.
Question 10
5 out of 5 points
On a test with a population mean of 75 and standard deviation equal to 16, if the scores are normally distributed, what percentage of scores fall between 70 and 80?
Question 11
5 out of 5 points
In a normal distribution approximately _________ of the scores will fall within 1 standard deviation of the mean.
Question 12
5 out of 5 points
A stockbroker has kept a daily record of the value of a particular stock over the years and finds that prices of the stock form a normal distribution with a mean of $8.52 with a standard deviation of $2.38.
What percentage of the distribution lies between $5 and $11?
Question 13
5 out of 5 points
A stockbroker has kept a daily record of the value of a particular stock over the years and finds that prices of the stock form a normal distribution with a mean of $8.52 with a standard deviation of $2.38.
The stock price beyond which 0.05 of the distribution falls is _________.
Question 14
5 out of 5 points
How much would your income be if its z score value was 2.58?
Question 15
5 out of 5 points
A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90. The scores are normally distributed.
The proportion of scores that lie above 650 is _________.
Question 16
5 out of 5 points
In a normal curve, the inflection points occur at _________.
Question 17
5 out of 5 points
A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90. The scores are normally distributed.
The proportion of scores that lie between 460 and 600 is _________.
Question 18
5 out of 5 points
The mean of the z distribution equals _________.
Question 19
5 out of 5 points
You have just taken a standardized skills test designed to help you make a career choice. Your math skills score was 63 and your writing skills score was 45. The standardized math distribution is normally distributed, with m = 50, and s = 8. The writing skills score distribution is also normally distributed, with m = 30, and s = 10. Based on this information, as between pursuing a career that requires good math skills or one requiring good writing skills, you should chose _________.
Question 20
0 out of 5 points
The proportion of scores less than z = 0.00 is _________.