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WorksheetsStatistics 2
Total questions: 15
Worksheet time: 4hrs 45mins
Which is true?
P-Value < 0.05 - there's statistical difference
P-Value < 0.05 - there's no statistical difference
P-Value > 0.05 - there's statistical difference
None of the above
The weight of the average 6th grade boy is 89 lbs. The principal of the school feeds them steak for first semester to see if their weight changes. What are the null and alternate hypotheses?
H0: μ = 89
H1: μ = 89
H0: μ = 89
H1: μ > 89
H0: μ = 89
H1: μ < 89
H0: μ = 89
H1: μ ≠ 89
What is the degree of freedom if the sample size is 20?
21
19
20
18
When testing with α=0.01 you get p=0.12 . Your decision should be
Reject H0, there is a significant difference
Accept H0, there is NOT a significant difference
Reject H0, there is NOT a significant difference
Accept H0, there is a significant difference
A fast food outlet claims that the mean waiting time in
line is less than 3.5 minutes. A random sample of 20
customers has a mean of 3.7 minutes with a standard
deviation of 0.8 minute. If α = 0.05, test the fast food
outlet's claim.
Reject Ho
Reject Ha
Fail to reject Ho
Fail to reject Ha
Another word for mean is...
sum
product
average
equation
Find the mean of the numbers below:
4, 9, 7, 10, 5
5
6
7
8
12, 5, 9, 18, 22, 25, 5
5, 0, 9, 9, 3, 0, 5, 5, 4
A scientific body of knowledge which deals with collection, presentation, interpretation and analysis of data.
Probability
Statistics
Sequence
Geometry
Which of the following data below is collected by measuring?
A. Mark of Mathematic Quiz for 16 students.
B. Number of goals of 10 netball games.
C. Hobby of 16 students in a class.
D. Temperature of 10 patients in an emergency room.
If this is the graph of data normally distributed with a mean of 30 and a standard deviation of 5, what label (number) is written at the blue circle?
20
15
40
30
This data is normally distributed. What percent of the data is in the shaded region?
68%
95%
99.8%
50%
State whether this is a one or two-tailed test.
One-Tailed
Two-Tailed
What is an one-sample t-test used for?
Comparing means from a sample and a population
Comparing means from two separate samples
Comparing means from two related samples
Comparing means from more than two samples
