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Math 10
Winter 2011
Form P
Name: Last:______________________ First:________________
Exam 3:
Chapters 8, 9, 10
•
Put your NAME on THIS EXAM.
•
Print your NAME on your Scantron.
•
Print Form P on your Scantron.
•
Each question has exactly one BEST answer.
There are 21 questions.
•
You may write on this exam.
There is no scratch paper allowed.
•
Each question is worth 5 points for a total of 105 points. This includes 5 bonus points!
•
If you have no note page, you must write NO NOTES
on your SCANTRON.
•
Put your SCANTRON and PAGE of NOTES inside your EXAM.
BEFORE YOU START
PACKING YOUR THINGS AWAY
, turn in your EXAM and SCANTRON and notes. Then go back
to your desk to pack up your materials.
When your exam is returned, you will get back all materials
you turned in.
•
Turn your cell phone OFF.
Any noise from a cell phone will signal that your exam is
over.
FAILURE TO FOLLOW ALL OF THE ABOVE INSTRUCTIONS WILL COST YOU THE 5
BONUS POINTS!
1.
The pvalue for a hypothesis test is calculated from:
A. the sampling distribution of the random variable, assuming the null hypothesis.
B. the sampling distribution of the random variable, assuming the alternative hypothesis.
C. the level of significance of the test.
D. the power of the test.
Questions 2  3 refer to the following.
A statistics teacher claims that, on average, her statistics students this quarter are doing better than her
students from five years ago.
The table compares final exam grades for a sample of students this
quarter to the final exam grades for a sample of students from five years ago.
Sample Mean
Sample Standard
Deviation
Sample size
Students this quarter
73
9.4
15
Students from 5 years ago
67
10.8
21
2.
Determine the appropriate test and best distribution to test the teacher’s claim.
A. Matched or paired samples, tdistribution
B. Two population proportions, normal distribution
C. Two independent means, normal distribution
D. Two independent means, tdistribution
3.
The appropriate alternate hypothesis is:
A. µ
D
> 0
B.
x
THIS QUARTER
>
x
5 YEARS AGO
C.
x
THIS QUARTER
≥
x
5 YEARS AGO
D. µ
THIS QUARTER
> µ
5 YEARS AGO
1
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View Full Document Questions 4  7 refer to the following.
In a simple random sample of 256 residents of a city with a soccer team, 25% responded that they had
attended a soccer game this year.
City officials believe attendance has fallen from last year when 27%
of city residents attended a soccer game.
4.
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This note was uploaded on 11/27/2011 for the course MATH 10 taught by Professor Plum during the Fall '11 term at DeAnza College.
 Fall '11
 Plum
 Math, Statistics

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