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Final Exam A2
Final Exam A2
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1
Word problem :)
Is not a binomial
Is a binomial
2
The bigger the standard deviation, the bigger the _______ curve.
Wider
Narrower
3
How do you find the critical value with a two tailed test?
a divided by 2
Look up a
a multiplied by 2
1 minus a
4
Which of the following is an example of Qualitative data?
Responses on a Poll
Hair Color
Student ID numbers
Body Temperature
5
A company advertises that the mean life of its computers are less than 14 years. Is this left tailed or right tailed?
Right-Tailed
Left-Tailed
6
Are these symbols for Ho: or Ha: ? (
≥,≤,=)
Ho;
Ha:
7
Is the correlation negative or positive?
Negative
Positive
8
What type of equation is this?
Confidence interval equation
Standardized score
Regression coefficent
Margin of Error
9
What are the requirements for a geometric distribution to take place?
Multiple possibilities
Trials are dependent
Probabilites do not change
Only look for first success
10
Which of the following are considered as independent events?
Drawing a queen changes the number of cards in the deck
The coin will not change the result on the die
Smoking increases your chances of getting cancer
The number of hours you study compared to your test score
11
A hypothesis test is a process that uses population statistics to test a claim about the value of a population parameter
True
False
12
Which ones fits in a ratio data set?
Wait times at a grocery store
Jersey numbers for a basketball team
Top Fifty Songs
Birth Year
13
Which variable can you count all of the possibilites?
Discrete
Continuous
14
What are the requirements for binomial distributions?
Trials are dependent
Possibilities do NOT change
Multiple possibilities
Set number of trials
15
How do you find the expected value if it is not given for the problem?
You do not need the expected value to solve the problem
Observed x N
Total/categories
The expected value is always given
16
A knee surgery has a 95% success rate on patients. We perform surgery on 5 patients. What is the rate of
.0001
.00002
.00004
.00003
17
A stem and leaf plot is in numerical order.
True
False
18
Stratified Sampling is biased.
True
False
19
What are the percentages for the empirical rule?
43%, 68%, and 59%
68%, 95%, and 99.7%
55%, 90%, and 45%
68%, 95%, and 19%
20
When is a classical probability used?
To show what is supposed to happen
What actually happen
Never
100% of the time
21
A conditional probability is the probability of an event occuring given that another event has already occured.
True
False
22
Looking at the table below…
Dependent
Independent
23
Is a Pareto chart using qualitative data or quantitative data?
Qualitative
Quantitative
24
For a goodness of fit test, are they always right tailed?
Yes
No
25
If N is greater than 30, what chart would you use to find the critical value of a=0.10
Pink Chart
Blue chart
Green Chart
Mrs. Wieber
