Question

- A researcher measured the time that a sample of students selected from Caldwell University spent studying on a given week during a semester. Here are the data in hours:

4, 6, 5, 4, 5, 7, 8, 6, 5, 7, 8, 9, 9,1, 0, 2, 3, 5, 6, 4, 3, 7, 8, 4, 5, 6, 7, 8, 7, 6, 21, 7, 8, 9,2, 3, 2

ANSWER the following questions based on the information given in question #9

Name the population:_____________________________________________________________

Name the sample:________________________________________________________________

How many participants are in the sample?_____________________________________________

What is the scale of measurement?___________________________________________________

Is the scale continuous or discrete? ___________________________________

9a. Use SPSS to compute the following (using the data from question 9):

-generate a frequency table

-the appropriate graph

-mean

-median

-mode

PASTE your SPSS results here:

Answer #1

population: **All students from Caldwell
University**

sample: randomly selected **37 students from**
**Caldwell University**

number of participants in the sample are **37**

the time is spent studying on a given week during a semester is
measured by the **ratio** scale of measurement.

the time is spent studying on a given week during a semester is
a **continuous** variable

-generate a frequency table

-the appropriate graph

-mean , -median , -mode

An investigator studied the relationship between anxiety and
school achievement. The researcher selected a random sample of 15
fifth-grade students, all aged 10 years. Each student was given an
anxiety test (high scores indicating high anxiety) and these
measures were paired with the student's score on an academic
achievement test (high score indicating high achievement). The data
are as follows:
Anxiety
Score Achievement
Score
10
2
8
4
9
6
7
5
9
3
5 ...

The table below gives the number of hours five randomly selected
students spent studying and their corresponding term grades. Using
this data, consider the equation of the regression line,
yˆ=b0+b1xy^=b0+b1x, for predicting the grade that a student will
earn based on the number of hours spent studying. Keep in mind, the
correlation coefficient may or may not be statistically significant
for the data given. Remember, in practice, it would not be
appropriate to use the regression line to make a...

A social researcher is interested in studying the relationship
between racial bias and political party affiliation. A sample of
voters were given an implicit bias test with higher scores
indicating more implicit, racial bias. Use an ANOVA to analyze her
data. Republicans Independents Democrats 8 6 4 7 3 2 6 6 1 8 3 3 5
4 5 7 2 2 9 5 4 3 8 6 4 7 2 5 4 2 Answer the following
questions.
1. What...

An investigator studied the relationship between anxiety and
school achievement. The researcher selected a random sample of 15
fifth-grade students, all aged 10 years. Each student was given an
anxiety test (high scores indicating high anxiety) and these
measures were paired with the student's score on an academic
achievement test (high score indicating high achievement). The data
are as follows:
Anxiety
Score Achievement
Score
10
2
8
4
9
6
7
5
9
3
5 ...

An investigator studied the relationship between anxiety and
school achievement. The researcher selected a random sample of 15
fifth-grade students, all aged 10 years. Each student was given an
anxiety test (high scores indicating high anxiety) and these
measures were paired with the student's score on an academic
achievement test (high score indicating high achievement). The data
are as follows:
Anxiety
Score Achievement
Score
10
2
8
4
9
6
7
5
9
3
5 ...

The table below gives the number of hours five randomly selected
students spent studying and their corresponding midterm exam
grades. Using this data, consider the equation of the regression
line, yˆ=b0+b1x, for predicting the midterm exam grade that a
student will earn based on the number of hours spent studying. Keep
in mind, the correlation coefficient may or may not be
statistically significant for the data given. Remember, in
practice, it would not be appropriate to use the regression line...

Question 1 options:
Given the following sample data calculate the indicated
statistics. If necessary, put answers in 2 decimal places, i.e.,
.XX.
5
2
4
6
8
10
7
8
9
11
Mean =
Sample Variance =
Z-score for observation 7 =
Range =
Mode =

Jones and Smith’s advertising company wish to know if cartoons
on cereal boxes cause children to attribute higher taste ratings to
the cereal. The advertising company hires a psychologist to conduct
a study before developing a sales plan for the cereal. The
psychologist randomly selects 24 participants for a pilot study.
She randomly assigns the sample so that 12 participants eat
the cereal with the cartoon on the box while the other
12 participants eat the cereal without a cartoon...

The table below gives the number of hours ten randomly selected
students spent studying and their corresponding test grades. Using
this data, consider the equation of the regression line, yˆ=b0+b1x,
for predicting the test grade that a student will earn based on the
number of hours spent studying. Keep in mind, the correlation
coefficient may or may not be statistically significant for the
data given. Remember, in practice, it would not be appropriate to
use the regression line to make...

The table below gives the number of hours ten randomly selected
students spent studying and their corresponding midterm exam
grades. Using this data, consider the equation of the regression
line, yˆ=b0+b1xy^=b0+b1x, for predicting the midterm exam grade
that a student will earn based on the number of hours spent
studying. Keep in mind, the correlation coefficient may or may not
be statistically significant for the data given. Remember, in
practice, it would not be appropriate to use the regression line...

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