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WorksheetsStats review for final (quiz)
Total questions: 60
Worksheet time: 1hrs 3mins
Identify whether this variable is categorical, numerical, or neither. Your favorite car.
Categorical
Numerical
Neither
Identify whether this variable is categorical, numerical, or neither. Your choice of super power, super flight, super smell, or super speed.
Categorical
Numerical
Neither
Identify whether this variable is categorical, numerical, or neither. How many siblings you have.
Categorical
Numerical
Neither
Identify whether this variable is categorical, numerical, or neither. The number of days you've been absent this year.
Categorical
Numerical
Neither
Identify whether this variable is categorical, numerical, or neither. The weight of your book bag.
Categorical
Numerical
Neither
Identify whether this variable is categorical, numerical, or neither. Your height.
Categorical
Numerical
Neither
Find the mean:
28, 18, 19, 18, 7
20
18
11
19
What is the definition of the range?
The average
The number that occurs the most
The middle number
the maximum number minus the minimum number
Find the median:
5, 6, 3, 0, 4, 1, 2
4
4.1
3
4.5
What is the definition of the mean?
What you get when you add all the numbers in a data set and divide by how many numbers there are
The middle number
The difference between the highest and lowest numbers
The number that occurs the most
There can be more than one mode.
True
False
Find the median:
3, 5, 7, 3, 3, 1
3 and 4
There isn't one
3.5
3
3.8, 4.2, 4.0, 4.2, 4.2
4, 5, 4, 3, 5, 1, 6
Find the range:
24, 33, 43, 42, 23, 41, 40
17
21
35
20
In order to find the median, do we sort the data from least to greatest first?
yes
no
Find the upper quartile (Q3). (Hint... put the numbers in order and find the median to help you find Q3)
7
Find the IQR (Q3 - Q1) of the data
20, 22, 25, 29, 31
What is 20% of 275
27
55
2750
27.5
What is 4% of 50
5
2.5
2
3
What is 200% of 50?
55
100
60
It is not possible
60 is 20 percent of what?
300
400
500
600
40 is 20 percent of what?
200
150
300
250
Convert 0.081 to a percent
0.81%
0.18%
8.1%
81%
140 is what percentage of 350?
20%
2%
40%
80%
What is the null hypothesis?
A hypothesis in which you state that there will be no difference between 2 variables.
A hypothesis in which you state that there will be a difference between 2 variables.
What is the alternative hypothesis?
A hypothesis in which you state that there will be no difference between 2 variables.
A hypothesis in which you state that there will be a difference between 2 variables.
What does it mean to "reject" the null hypothesis?
You have decided that there is significant data to prove that one variable is different from another.
You don't have enough data to prove anything, or your data does not produce significant results.
What does it mean to "accept" the null hypothesis?
You have decided that there is significant data to prove that one variable is different from another.
You don't have enough data to prove anything, or your data does not produce significant results.
You are testing to see if your child has a fever or not. In other words, you are testing to see if their temperature is significantly different than 98.6. State the null hypothesis
Your child's temperature will not be significantly different than 98.6.
Your child's temperature will be significantly different than 98.6.
Your child's temperature will be warm.
Your child's temperature will be cold.
You are testing to see if your child has a fever or not. In other words, you are testing to see if their temperature is significantly different than 98.6. State the alternative hypothesis
Your child's temperature will not be significantly different than 98.6.
Your child's temperature will be significantly different than 98.6.
Your child's temperature will be warm.
Your child's temperature will be cold.
Let's say that you decided your child had a fever, which means you decided that your child had a temperature significantly greater than 98.6. What does this mean?
You rejected the null hypothesis.
You accepted the null hypothesis.
You treated the null hypothesis.
You rejected the alternative hypothesis.
Let's say that you decided your child did not have a fever, which means you decided that your child's temperature was not significantly greater than 98.6. What does this mean?
You rejected the null hypothesis.
You accepted the null hypothesis.
You treated the null hypothesis.
You rejected the alternative hypothesis.
Given a mean of 75 and a standard deviation of 7, what percentage of scores are between 75 and 82?
68%
81.5%
16%
34%
Given a mean of 75 and a standard deviation of 7, what percentage of scores are above 82?
34%
81.5%
16%
2.5%
Given a mean of 75 and a standard deviation of 7, what percentage of scores are greater than 68?
34%
84%
95%
68%
Given a mean of 75 and a standard deviation of 7, how many students out of 500 would score higher than 68?
11
12
420
250
Given a mean of 75 and a standard deviation of 7, how many students out of 500 would score between 68 and 82
11
2
340
498
Given a mean of 80 and a standard deviation of 8, find the z-score of 96.
2
1.5
-1
-1.5
Given a mean of 80 and a standard deviation of 8, find the z-score of 92
2
1.5
-1
-1.5
Given a mean of 80 and a standard deviation of 8, find the percentage under 72 using the z-score table.
84.13%
69.15%
15.87%
6.68%
Given a mean of 80 and a standard deviation of 8, find the percentage under 68 using the z-score table.
84.13%
69.15%
15.87%
6.68%
What is the shape of this bar graph?
Skew right
Skew left
Symmetrical
uniform
What is the box plot?
skewed left
skewed right
symmetrical
Which interval has the greatest number of students?
If your p-value is 1, you
reject the null hypothesis, there is a difference in the data sets.
accept the null hypothesis, there is not a difference in the data sets.
neither, your logic is irrelevant.
If your p-value is 5, you
reject the null hypothesis, there is a difference in the data sets.
accept the null hypothesis, there is not a difference in the data sets.
neither, your logic is irrelevant.
If your p-value is 7, you
reject the null hypothesis, there is a difference in the data sets.
accept the null hypothesis, there is not a difference in the data sets.
neither, your logic is irrelevant.
