Question

In a statistics class, 8 students took their pulses before and after being frightened. The frightening event was having the teacher scream and run from one side of the room to the other. The pulse rates (beats per minute) of the students before and after the scream were obtained separately and are shown in the table. Treat this as though it were a random sample of community college students. Test the hypothesis that the mean of college students' pulse rates is higher after a fright using a significance level of 0.05. Do the 5-step hypothesis test and submit an image of each step. show your work.

Participant # | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |

Pulse Before | 93 | 86 | 70 | 73 | 83 | 92 | 83 | 62 |

Pulse After | 102 |
87 |
73 | 74 | 87 | 98 | 83 | 71 |

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In a statistics class, 8 students took their pulses before and
after being frightened. The frightening event was having the
teacher scream and run from one side of the room to the other. The
pulse rates (beats per minute) of the students before and after the
scream were obtained separately and are shown in the table. Treat
this as though it were a random sample of community college
students. Test the hypothesis that the mean of college students'
pulse rates...

In a statistics class, students took their pulses before and
after being frightened. The frightening event was having the
teacher scream and run from one side of the room to the other. The
pulse rates (beats per minute) of the women before and after the
scream were obtained separately and are shown in the accompanying
table. Treat this as though it were a random sample of female
community college students. Test the hypothesis that the mean of
college women's pulse...

For each test below, follow the following steps.
(1) state the hypotheses,
(2) formulate an analysis plan
(3) analyze sample data
(4) interpret the results
You may use the TI-83 to calculate the test statistic and p-value,
but be sure you indicate which test you are using.
Test V – Pulse Rates and Fright
In a statistics class, 13 students took their pulse rates before
and after being frightened. The frightening event was having the
teacher scream and run from...

A test of abstract reasoning is given to a random sample of
students before and after they completed a formal logic course. The
results are given below. At the 0.05 significance level, test the
claim that the mean score is not affected by the course using
PHANTOMS.
Before: 74, 83, 75, 88, 84, 63, 93, 84, 91, 77
After: 73, 77, 70, 77, 74, 67, 95, 83, 84, 75

A study monitored responses to stressor. After being exposed to
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sample of 21 persons had are x=75 beats per second and s=6.83 beats
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Test the hypothesis that there is no significant difference between
a normal heart rate and that of a stressed pet owner (use α=.05).
What do the conclusions show?
Show:
H0 and Ha
Calculations to...

For a paper in my cognitive psych class i must identify the
independent and dependent variables in the musics affect on
academic performance. The testing procedure is 10 minutes of a
Mozart piece, 10 minutes of a relaxation piece, and 10 minutes of
silence before an IQ quiz (Stanford-Binet intellencence
scale).Three tests were given, a pattern analysis test, multiple
choice matrices test, and a multiple choice paper folding and
cutting test (all three were at the .01 level of signifcance)....

HI6007 Statistics for Business Decisions
Tutorial 7 – Week 8
Question 1:
The average starting salary of students who graduated from
colleges of Business in 2009 was $48,400. A sample of 100 graduates
of 2010 showed an average starting salary of $50,000. Assume the
standard deviation of the population is known to be $8000. We want
to determine whether or not there has been a significant increase
in the starting salaries.
Step 1. Statement of the
hypothesis
Step 2....

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...

The data are not actual data, but are modeled after data
collected by Trautwein and Ammerman (2013) for a study on the
effects of cochlear implants (CI) on the language, speech, and
perception skills of 32 deaf children: 16 subjects with at least
one cochlear implant (CI) and 16 subjects (with hearing loss)
without an implant. (CI subjects were implanted at 13 or 14 months
of age. So, no subjects had CIs at the time of the first data
collection.)...

Please read the article and answear about
questions.
Determining the Value of the Business
After you have completed a thorough and exacting investigation,
you need to analyze all the infor- mation you have gathered. This
is the time to consult with your business, financial, and legal
advis- ers to arrive at an estimate of the value of the business.
Outside advisers are impartial and are more likely to see the bad
things about the business than are you. You should...

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