Question

a. Please state both the null and alternative hypotheses for this question. b. Provide the decision rule for making this decision. Use an alpha level of .05. c. Show all of the work necessary to calculate the appropriate statistic. d. What conclusion are you allowed to draw? Write a conclusions sentence in APA format (i.e., it includes the appropriate statistical information).

At a state university, the student population is approximately one- third male and two-thirds female. Over a two-day period the gender of each student entering the student union is recorded, with the following results: males, 452; females, 1548. Determine whether males and females are as likely to enter the union as would be predicted on the basis of their percentage in the student population.

Answer #1

a. Please state both the null and alternative hypotheses for
this question. b. Provide the decision rule for making this
decision. Use an alpha level of .05. c. Show all the work necessary
to calculate the appropriate statistic. d. What conclusion are you
allowed to draw? Write a conclusions sentence in APA format (i.e.,
it includes the appropriate statistical information).
In a study of the effectiveness of an antipsychotic drug,
patients treated with the drug were compared to patients receiving...

At a state university, the student population is approximately
one-third male and two-thirds female. Over a two-day period the
gender of each student entering the student union is recorded, with
the following results: males, 400; females, 500. Determine whether
males and females are as likely to enter the union as would be
predicted on the basis of their percentage in the student
population.
Please use SPSS, copy and paste the SPSS results.

For each of the following studies, state both the null and
alternative hypotheses and the decision rule, then work the
problem. Look up the critical value of t that would cut
off the tails of the distribution. Note that each study specifies
the alpha value to use and whether to use a one- or two-tailed
test. Decide whether to reject or fail to reject the null and
answer the question.
The first example does not include a sample size, I...

a.
State the null hypothesis.
b.
Identify the appropriate statistical test
c.
Calculate the appropriate test statistic. Make sure to report the
degrees of freedom for the statistical test (if appropriate). You
must show your work to receive full credit.
d.
State your conclusions (use a two-tailed test with a = .05 for all
tests).
e.
Compute an effect size.
A researcher knows that the weights of 6 year olds are normally
distributed with m = 20 kg and s...

*** Please answer all questions, not some. This entire
discussion does count as one question w/
parts.
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Context - A Real Court Case
In the early 1970s, a young man challenged an Oklahoma state law
that prohibited the sale of 3.2% beer to males under age 21 but
allowed its sale to females in the same age group. The case
(Craig v. Boren, 429 U.S. 190, 1976) was ultimately heard
by the U.S. Supreme Court. The state of Oklahoma...

Do female college students spend more time than male college
students watching TV? This was one of the questions investigated by
the authors of an article. Each student in a random sample of 46
male students at a university in England and each student in a
random sample of 38 female students from the same university kept a
diary of how he or she spent time over a three-week period.
For the sample of males, the mean time spent watching...

Do female college students spend more time than male college
students watching TV? This was one of the questions investigated by
the authors of an article. Each student in a random sample of 46
male students at a university in England and each student in a
random sample of 38 female students from the same university kept a
diary of how he or she spent time over a three-week period.
For the sample of males, the mean time spent watching...

Please note that for all problems in this course, the
standard cut-off (alpha) for a test of significance will be .05,
and you always report the exact power unless SPSS output states
p=.000 (you’d report p<.001). Also, remember when
hand-calculating, always use TWO decimal places so that deductions
in grading won’t be due to rounding differences.
Problem Set 1: (22 pts)
A teacher wanted to see if a new pedagogical approach was
beneficial to students, and if the effects vary...

Independent-Samples t-Test
In a research project, researchers track the health and
cognitive functions of the elderly in the community. To examine any
possible gender differences in their sample, they want to see if
the females and the males differ significantly on the education
level (number of years of formal schooling). The researchers are
not predicting any direction in the possible gender differences so
the hypotheses should be non-directional. They would like to run a
two-tailed test with α = .10....

In this second portion of the Final Exam, you will critically
evaluate a quantitative research study on a social science topic.
Your instructor will post an announcement with the reference for
the article assigned for the exam. The study will be from a
peer-reviewed journal and published within the last 10 years.
In the body of your critique, describe the statistical
approaches used, the variables included, the hypothesis(es)
proposed, and the interpretation of the results. In your
conclusion, suggest other...

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