1
MATH 221 Statistics for Decision Making
Week 2 iLab
Name:_Starr Goodwin
Statistical Concepts that you will learn after completing this iLab:
Using Excel for Statistics
Graphics
Shapes of Distributions
Descriptive Statistics
Empirical Rule
Week 2 iL
Statistics Lab Week 2
Name:_ _
Math221
Statistical Concepts:
Using Minitab
Graphics
Shapes of Distributions
Descriptive Statistics
Empirical Rule
Data in Minitab
Minitab is a powerful, yet user-friendly, data analysis software package. You can
launc
1) The statement that determines if the null hypothesis is rejected or not is called the
A. critical value
B. alternate hypothesis
C. test statistic
D. decision rule
2) What are the critical z-values for a two-tailed hypothesis test if the significant lev
Qn. 20
Z Test of Hypothesis for the Proportion
Data
Null Hypothesis
p=
Level of Significance
Number of Successes
Sample Size
Intermediate Calculations
Sample Proportion
Standard Error
Z Test Statistic
0.2
0.05
75
300
0.25
0.0230940108
2.1650635095
Upper-T
Drive
State
36
MI
80 NV
76 PA
88 CA
54 FL
6 OR
4 NY
55 OH
36 TX
71 MI
25 GA
28 NY
73 FL
63 PA
78 CA
94 KY
36 OR
25 CA
76 NY
80 CA
X
0
1
2
3
4
5
6
7
8
9
10
P(x)
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Temp
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52
Statistics Lab Week 4
Name: John Matias DSI03156412
MATH221
Plotting the Binomial Probabilities
1. Create plots for the three binomial distributions above. Select Graph > Scatter Plot
and Simple then for graph 1 set Y equal to one fourth and X to success
Statistics Lab Week 4
Name: John Matias DSI03156412
MATH221
Plotting the Binomial Probabilities
1. Create plots for the three binomial distributions above. Select Graph > Scatter Plot
and Simple then for graph 1 set Y equal to one fourth and X to success
Statistics Lab Week 2
Name: John Matias DSI:03156412_
Math221
Statistical Concepts:
Using MINITAB
Graphics
Shapes of Distributions
Descriptive Statistics
Empirical Rule
Data in MINITAB
MINITAB is a powerful, yet user-friendly, data analysis software
1. (TCO 5) An airline company found that 80% of their flights arrive to their destination on time.
We are interested in selecting a sample of 5 flights and calculating the probability of all of them
getting to their destination on time. Choose the best an
1. (TCO 5) An airline company found that 80% of their flights arrive to their destination on time.
We are interested in selecting a sample of 5 flights and calculating the probability of all of them
getting to their destination on time. Choose the best an
1. (TCO 9) The hours of study and the final exam grades have this type of relationship:
= 5.76(hours) + 35.31. Based on this linear regression equation, estimate the expected
grade for a student spending 8 hours studying. Round your answer to two decimal
1.
Question: (TCO 6) In the standard normal distribution, the standard deviation is always
Your Answer:
0
( Ch 5: By definition, the standard
deviation = 1. )
1
CORREC
T
2
none of
these
2.
Points 5 of 5
Received:
Question: (TCO 6) The area under a normal
Week 6 ilab John Matias D03156412
Short Answer Writing Assignment
All answers should be complete sentences.
1.
When rolling a die, is this an example of a discrete or continuous random variable?
Explain your reasoning.
Discrete, because the possible value
1. (TCO 1) What method of data collection would you use to collect data for a study where a
drug was given to 10 patients and a placebo to another group of 10 patients to determine
if the drug has an effect on a patients illness
use sampling
take a census
1. (TCO 1) What method of data collection would you use to collect data for a study where a drug
was given to 10 patients and a placebo to another group of 10 patients to determine if the drug has
an effect on a patients illness
use sampling
take a census
1) The statement that determines if the null hypothesis is rejected or not is called the
A. critical value
B. alternate hypothesis
C. test statistic
D. decision rule
2) What are the critical z-values for a two-tailed hypothesis test if the significant lev
Qn. 20
Z Test of Hypothesis for the Proportion
Data
Null Hypothesis
p=
Level of Significance
Number of Successes
Sample Size
Intermediate Calculations
Sample Proportion
Standard Error
Z Test Statistic
0.2
0.05
75
300
0.25
0.0230940108
2.1650635095
Upper-T
1.
A)
B)
C)
D)
What is the variable used to predict the value of another called?
Independent
Dependent
Correlation
Determination
2.
A)
B)
C)
Based on the regression equation, we can
predict the value of the dependent variable given a value of the independ
1.
A)
B)
C)
D)
What is the variable used to predict the value of another called?
Independent
Dependent
Correlation
Determination
2.
A)
B)
C)
Based on the regression equation, we can
predict the value of the dependent variable given a value of the independ
Week 6 ilab John Matias D03156412
Short Answer Writing Assignment
All answers should be complete sentences.
1.
When rolling a die, is this an example of a discrete or continuous random variable?
Explain your reasoning.
Discrete, because the possible value
1) The statement that determines if the null hypothesis is rejected or not is called the
A. critical value
B. alternate hypothesis
C. test statistic
D. decision rule
2) What are the critical z-values for a two-tailed hypothesis test if the significant lev
Qn. 20
Z Test of Hypothesis for the Proportion
Data
Null Hypothesis
p=
Level of Significance
Number of Successes
Sample Size
Intermediate Calculations
Sample Proportion
Standard Error
Z Test Statistic
0.2
0.05
75
300
0.25
0.0230940108
2.1650635095
Upper-T
Statistics Lab Week 2
Name: John Matias DSI:03156412_
Math221
Statistical Concepts:
Using MINITAB
Graphics
Shapes of Distributions
Descriptive Statistics
Empirical Rule
Data in MINITAB
MINITAB is a powerful, yet user-friendly, data analysis software
1. (TCO 5) An airline company found that 80% of their flights arrive to their destination on time.
We are interested in selecting a sample of 5 flights and calculating the probability of all of them
getting to their destination on time. Choose the best an
1. (TCO 5) An airline company found that 80% of their flights arrive to their destination on time.
We are interested in selecting a sample of 5 flights and calculating the probability of all of them
getting to their destination on time. Choose the best an
1.
Question: (TCO 6) In the standard normal distribution, the standard deviation is always
Your Answer:
0
( Ch 5: By definition, the standard
deviation = 1. )
1
CORREC
T
2
none of
these
2.
Points 5 of 5
Received:
Question: (TCO 6) The area under a normal
Sonics poems same as love poems
Part 1- Thesis statement (Explain what critical theory you will use to examine the poetry)
Part 2- Bio (brief) of poet
Part 3- 4 poems analyzed
Part 4- - intro of the overall poems all in one intro
Part 5- Conclusion will b