LAB PROJECT PHASE 3
1.) INDEPENDENT-SAMPLE T TEST OUTPUT:
NOT OFTEN ATTEND
OFTEN ATTEND CHURCH
Std. Error Mean
1. I took a sample of the grade point averages for student in my class. For 25 students, the
standard deviation of grade points was 0.65 and the mean was 2.89. The standard error for the
Points Earned: 1/1
1. Choose 50 engaged couples who have not been previously married. Interview the man and
woman separately about how their joint finances will be handled after marriage. Compare the
views of men and women. Which data design?
B. a single s
1. Government data show that 8% of adults are full-time college students and that 30% of adults
are age 55 or older.
Nonetheless, we can't conclude that, because (0.08)(0.30) = 0.024, about 2.4% of adults are
college students 55 or older.
1. A professor is interested in how the 500 students in his class will rate today's lecture. He
selects the first 20 students on his class list, reads the names at the beginning of the lecture,
and asks them to go online to the course Web site and rate th
Students who have finished medical school are assigned to residencies in hospitals to receive
further training in a medical specialty. Here is part of a hypothetical database of students seeking
residency positions. USMLE is the students score on Step 1 o
. I want to examine the relationship between gas mileage of cars and the engine size
(displacement in cubic inches). The explanatory variable is
A. engine size.
B. gas mileage.
C. either engine size or gas mileage.
Points Earned: 0/1
It appears that people who are mildly obese are less active than leaner people.
One study looked at the average number of minutes per day that people spend standing or walking.
Among mildly obese people, minutes of activity varied according to the N(373,
1. In 2008, respondents to the General Social Survey were asked: There are always some people
whose ideas are considered bad or dangerous by other people. For instance, somebody who is
against churches and religion. If such a person wanted to make a speec
1. What is the slope of the regression line?
The slope is the coefficient before the x variable (D in this case). Thus the answer is 0.0138.
Points Earned: 1/1
Correct Answer: 0.0138
Your Response: 0.0138
2. Explain in specic language what this slo
1. Heres a new idea for treating advanced melanoma, the most serious kind of skin cancer.
Genetically engineer white blood cells to better recognize and destroy cancer cells, then infuse
these cells into patients. The subjects
in a small initial study of
1. Does X have a binomial distribution?
A. No, the calls are not independent.
B. No, the calls are independent, but each one has more than two possibilities.
C. Yes, the calls are independent, each one has two possibilities, and the probability of
The Millennial generation (so called because they were born after 1980 and began to come of age
around the year 2000) are less religiously active than older Americans. One of the questions in
the General Social Survey in 2008 was How often does the respon
The National Assessment of Educational Progress (NAEP) includes a mathematics test for high
school seniors.2 Scores on the test range from 0 to 300. Demonstrating the ability to use the
Pythagorean theorem to determine the length of a hypotenuse is an exa
1. From March 1981 to February 1983 the number of burglaries committed each month in a
Georgia town was recorded. They are given in the chart below. Between months 12 and 13 a
law was enacted requiring citizens to own a gun. Town officials felt this law m
1. Explain carefully what this means.
A. If you play 245 games, in 2 of them you will get four of a kind.
B. If you hold a pair and you open 245 cards, you will have 2 combinations of four of a kind.
C. If you have a pair in your hand, the probability tha
1. A researcher in early education believes that kindergarten-age children are more receptive to
help from a female teacher than from a male teacher. From the list of kindergarten teachers in
the state, the researcher randomly samples four classes in whic
A linear regression analysis was conducted to determine whether scores from
questions about the Chrisitan doctrine predict Church attendance. The results
indicated a positive linear relationship between the variables, r (17) = .237, p = .
245 > .
SPSS HOMEWORK 7:
Green & Salkind: Lesson 40 Exercises 14
Method of cooking potato chips
Fried in animal fat
Fried in Canola oil
SPSS HOMEWORK 5:
Green & Salkind: Lesson 31 Exercises 1, 34
Overall quality as an
Overall course quality
Number of publications
Number of times cited by
SPSS HOMEWORK 8:
1. Green & Salkind: Lesson 42, Exercises 1, 34
The following helpful tips are numbered to correspond with the exercise number to which
Time in Seconds
Sum of Ran
SPSS HOMEWORK 6:
PREDICTION BIVARIATE LINEAR REGRESSION
Green & Salkind: Lesson 33 Exercises 1, 34
Number of times hit by a
Number of times hit by a
SPSS HOMEWORK 2
Green & Salkind: Lesson 24 Exercises 15
The following helpful tips are numbered to correspond with the exercise number to which they
1. Type the t and p values out underneath your copied
SPSS HOMEWORK 1 INSTRUCTIONS:
SINGLE-SAMPLE T-TESTS AND PAIRED-SAMPLES T-TESTS
1. Single-Sample t-Test
Std. Error Mean
1. A 1993 survey conducted by the local paper in Columbus, Ohio, one week before Election Day,
asked voters who they would vote for City Attorney. The goal was to predict the outcome of the
upcoming election. Thirty-seven percent said they would vote for
1. I select two cards from a deck of fifty-two cards and observe the color of each (twenty-six
cards in the deck are red and twenty-six are black). Which of the following is an appropriate
sample space S for the possible outcomes?
A. S = cfw_red, black
The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures students
study habits and attitude toward school. Scores range from 0 to 200. The mean score for college
students is about 115, and the standard deviation is about 30. A
1. A sociologist wants to study the attitudes of American male college students toward
marriage and husband-wife relations. She gives a questionnaire to twenty-five of the men
enrolled in Sociology 101 at her college. All twenty-five complete and return t
Discrete Random Variables
A random variable is a real-valued function on a sample space1 . A random variable generally
is a quantity we wish to measure; the output of the random variable depends on which
element of the sample space