Scores of students in a large Statistics class are normally
distributed with a mean of 75 points and a standard deviation of 5
points.
Find the probability that a student scores more than 80
points
If 100 students are picked at random, how many do you expect to
score below 70 points?
If top 10% of students obtain an A grade, how much should a
student obtain to get an A grade.
Suppose four students are picked at random, find...
If two continuous measures are positively correlated
with one another, does that mean that one of them caused the other?
Why or why not?If two continuous measures are positively correlated
with one another, does that mean that one of them caused the other?
Why or why not? (THIS IS FOR MY MKT RESEARCH CLASS)
Think about variables that cause one student to perform better
in a business class than another student. Propose a hypothesis that
captures that relationship. Now, think of a third variable that
might mediate that relationship. Propose a hypothesis for that
effect. Explain.
75% of students who enroll in summer school only take one
class. We believe the proportion may be different. Use alpha =
0.02, beta = 0.02 and the maximum allowable error of 0.05 to find
the sample size for a hypothesis test.
A.
1339
B.
1507
C.
1258
D.
1170
A history class has 75 members. If there is a 12% absentee rate per class meeting, find the mean, variance, and standard deviation of the number of students who will be absent from each class.
when wages and salaries account for 75% GDP and consumption
spending is 65% of the GDP, what does that mean? if these numbers
go higher, what is the implication?
1. when you create a class by making it inherit from another
class, the new class automatically, contains the data fields and
_____ of the original class
a. fonts
b. methods
c. class names
d. arrays
2. if a programming language does not support ________, the
language is not considered object oriented
a. syntax
b. applets
c. loops
d. polymorphism
3. when you create a class and do not provide a ______, java
automatically supplies you with a default one...