STATISTICS - Lab #6
Statistical Concepts:
Data Simulation
Discrete Probability Distribution
Confidence Intervals

Calculations for a set of variables

Open the class survey results that were entered into the MINITAB worksheet.

We want to calculate the mean for the 10 rolls of the die for each student in the class. Label the column next to die10 in the Worksheet with the word mean. Pull up Calc > Row Statistics and select the radio-button corresponding to Mean. For Input variables: enter all 10 rows of the die data. Go to the Store result in: and select the mean column. Click OK and the mean for each observation will show up in the Worksheet.

We also want to calculate the median for the 10 rolls of the die. Label the next column in the Worksheet with the word median. Repeat the above steps but select the radio-button that corresponds to Median and in the Store results in: text area, place the median column.

Calculating Descriptive Statistics

Calculate descriptive statistics for the mean and median columns that where created above. Pull up Stat > Basic Statistics > Display Descriptive Statistics and set Variables: to mean and median. The output will show up in your Session Window. Print this information.

Calculating Confidence Intervals for one Variable

Open the class survey results that were entered into the MINITAB worksheet.

We are interested in calculating a 95% confidence interval for the hours of sleep a student gets. Pull up Stat > Basic Statistics > 1-Sample t and set Samples in columns: to Sleep. Click the OK button and the results will appear in your Session Window.

We are also interested in the same analysis with a 99% confidence interval. Use the same steps except select the Options button and change the Confidence level: to 99.

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?...

...class survey results that were entered into the MINITAB worksheet.
We want to calculate the mean for the 10 rolls of the die for each student in the class. Label the column next to die10 in the Worksheet with the word mean. Pull up Calc > Row Statistics and select the radio-button corresponding to Mean. For Input variables: enter all 10 rows of the die data. Go to the Store result in: and select the mean column. Click OK and the mean for each observation will show up in the...

...probability is 0.1107 for the gas to last between 18 and 21 miles when she fills up her car.
36. a) z1 = x1-m 0= 18-256= -76 = -1.167
b) z2= x2 - m0=30-356= 56 = 0.833
c) The area between z1 and z2 is also .6760.
Section 7.2
6. a) The area to the left of z = -3.49 is 0.0002
-3.49 0 z
b) The area to the left of z = -1.99
-1.99 0...

...Taylor Hill
Lab6: Enzymes
Purpose: The purpose of this lab is to test for enzyme activity, look at enzyme specificity, and how temperature affects enzyme activity.
Hypothesis: I believe that the room temperature activity will produce the most activity.
Materials: 3% hydrogen peroxide, a household blender, potatoes (3 medium size potatoes, that are peeled and quartered), tap water, 8 test tubes, 8 transfer pipets, sugar packets, salt, a...

...may be negative Ans = True
6) The table of probabilities of the random variable x is given as:
x 0 1 2 5
P(x) 0.5 0.2 0.2 0.1
Find the mean, µ and standard deviation, σ of x. Round answers to one decimal place. Ans = µ = 1.1, σ = 1.5
7) If p is the probability of success of a binomial experiment then the probability of failure is
A) 1 B) –p C) 1–p D) p + 0.5 Ans = C
8) A binomial experiment has 6...

...Lab6 Report
Part A
1. Run your model. Compare the queue statistics of the 3 processes with those obtained for Part C in the previous Lab. How have they changed and what conclusions can you draw? (Note the sums of all capacities for both cases are equivalent – 12 in each).
The queue time and number statistics for the Air Jordan Logo operators and the Air Max Logo Operators were relatively close. The average queue...

...Course Name and Number: CIS 333 LAB#6
Instructor Name: Professor West
Lab Due Date: 19 May 2013
1. What is the difference between a risk analysis (RA) and a business impact analysis (BIA)? Risk analysis is often identifying the potential threats and the associated vulnerabilities to the organizations .Risk analysis doesn’t view the organization from the mission critical Business Process point of view. More over BIA perceives the organization from...

...Business Continuity Planning Lab #6.
A risk assessment is a process to identify potential hazards and analyze what could happen if a hazard occurs.
A business impact analysis (BIA) is the process for determining the potential impacts resulting from the interruption of time sensitive or critical business processes.
A business continuity plan is a roadmap for continuing operations under adverse conditions such as a storm or a crime.
A disaster recovery plan,...

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