ANSWER THE FOLLOWING 1.) I am going to do two tests. In the first, I want to tes
ID: 3225573 • Letter: A
Question
ANSWER THE FOLLOWING
1.) I am going to do two tests. In the first, I want to test whether there is a difference in reaction time between males and females. In the second, females own more pairs of shoes than men. The first test would be ______ and the second test would be _________.
Select one:
a. one tailed and one tailed
b. two tailed and two tailed.
c. one tailed and two tailed
d. two-tailed and one tailed.
2.)Choose the best answer.
The F test and 2 are similar in_________________ and different in ___________.
Select one:
a. both use degrees of freedom; 2 works with mutiple samples.
b. both test variances: use for a single sample vs two samples
c. both are greek to me; one is squared
d. both are inferential statistics; both check population variance
3.)All of these are independent samples except:
Select one:
a. Sat scores and first semester grade point averages for college freshman
b. proportions of males in freshman and faculty at Ivy league colleges
c. SAT scores for incoming freshman at Harvard vs MIT
d. SAT scores for incoming males and females at JSC
4)I sit by the front door of a building and note the gender (male of female) of the first 10 people in the door. I want to know the probability that exactly 5 of the first ten people are female. To compute this, I would use:
Select one:
a. Norm.Dist
b. Binom.Dist
c. Permut
d. Hypgeom.Dist
5.)In the equation, Y = ax + b, b is:
Select one:
a. an unknown
b. the residual variance of the regression line
c. the slope of the trend line
d. The Y intercept, where the trend line crosses the Y axis
6.)Suppose I think that males and females are different in terms of their ability to distinguish color variation. I take 2 sections (35 people) of intro to psych and test all of the students on their ability to distinguish shades of red, blue and green. Students see two swatches of a color and decide whether they are the same or different. P1 is the proportion that males get correct. P2 is the proportion that females get correct.
The distribution I would use to test my hypothesis is:
Select one:
a. T
b. F
c. Z
d. 2
7.)If I collect Zip codes on survey participants, this data is:
Select one:
Select one:
a. ordinal
b. dichotomous
c. nominal
d. qualitative
Explanation / Answer
1) d
If alternative hypothesis is means are different then we use two sided test.
If it is of more than or less than type then we use one sided test.
It all depends on alternative hypothesis.
2) b
Both check variances.
3) a
Both samples in a are effect of some third variable so they are dependent
4) b
When there are only two outcomes of an experience like here male and female then we use binomial distribution .
5) d
a is slope and b is y intercept.
6) a
For proportions t test is used.
7) a
It natural data with arranged manner.