STAT200 quiz 1

Question 1 8 / 16 points

Hwk Assignment Week 1 Question 3

Text: David Lane

Hwk. Page 64 Question 17

In the ADHD Treatment (AT) case study (Link to AT study, page 660 in textbook):

What is the independent variable in the AT experiment?

ADHD DOG MPH Stars Counterbalance Weeks

How many levels does the independant variable have?

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Question 2 8 / 16 points

Hwk Assignment Week 1 Question 4

Text: David Lane

Page 64 Question 18

In the ADHD Treatment (AT) case study: (Link to the AT case study, page 660 in textbook)

What is the dependent variable?

ADHD DOG MPH Stars Counterbalance Weeks

On what scale is the dependent variable measured?

nominal ordinal interval ratio

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Question 3 17 / 17 points

Hwk Assignment Week 1 Question 5

Text: Barbara Illowsky

Hwk. Page 53 Question 50

A Lake Tahoe Community College instructor is interested in the mean number of days Lake Tahoe Community College math students are absent from class during a quarter.

What is the population she is interested in?

Question options:

All Lake Tahoe Community College students

All Lake Tahoe Community College English students

All Lake Tahoe Community College students in her classes

All Lake Tahoe Community College math students.

Question 4 17 / 17 points

Hwk Assignment Week 1 Question 6

Text: Barbara Illowsky

Hwk. Page 53 Question 52

A Lake Tahoe Community College instructor is interested in the mean number of days Lake Tahoe Community College math students are absent from class during a quarter.

The instructor’s sample produces a mean number of days absent of 3.5 days. This value is an example of a:

Question options:

Parameter

Data

Statistic

Variable

Question 5 17 / 17 points

Hwk Assignment Week 1 Question 7

Text: Barbara Illowsky

Hwk. Page 54 Question 72

A study was done to determine the age, number of times per week, and the duration (amount of time) of residents using a local park in San Jose.

The first house in the neighborhood around the park was selected randomly and then every eighth house in the neighborhood around the park was interviewed.

The sampling method was:

Question options:

Simple random

Systematic

Stratified

Cluster

Question 6 17 / 17 points

Hwk Assignment Week 1 Question 10

Text: Barbara Illowsky

Hwk. Page 59 Question 90

Seven hundred and seventy-one distance learning students at Long Beach City College responded to surveys in the 2010-11 academic year.

Highlights of the summary report are listed in Table 1.39.

Table 1.39 LBCC Distance Learning Survey

Results

Have computer at home 96%

Unable to come to campus for classes 65%

Age 41 or over 24%

Would like LBCC to offer more DL courses 95%

Took DL classes due to a disability 71%

Live at least 16 miles from campus 13%

Took DL courses to fulfill transfer requirements71%

What percent of the students surveyed do not have a computer at home?

Enter answer as a percent without the percent sign.

About how many students in the survey live at least 16 miles from campus?

Enter answer as a percent without the percent sign.

If the same survey were done at Great Basin College in Elko, Nevada, do you think the percentages would be the same?

Answer this question with:

Y for Yes

N for No

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