Statistics 217(L01) Lab #4: Solutions
Lab Exercise 1:
1. The boxplots and the Normal probability plots of the data in columns C1 and C2 are found below.
The boxplots would suggest that the variation in the number of trama cases received by Hospital A and
Statistics 217(L01) Lab #5: Solutions
Lab Exercise 1.
H0 : pM en = pW omen , or pM en pW omen = 0. HA : pM en 6= pW omen , or pM en pW omen 6= 0.
MINITAB was used to find the counts:
Tabulated statistics: Gender (0-Male, 1-Female), SocNetworkMem?
Rows: Ge
Statistics 217 (L01) Lab #4: A Nonparametric Test and Matched-Pairs
Experimental Design
You will require the data appearing in the MINITAB file Stat217L01LabFourData.MTW. This file contains data in columns C1, C2, C4, and C5. C1 and C2 you will need for t
Statistics 217(L01) Lab #3: Solutions
Answers to Lab Exercise 1:
1. H0 : M en = W omen (M en W omen = 0) vs. HA : M en 6= W omen (M en W omen 6= 0).
2. From the boxplot, it seems as if the GPA for both male and females is normally distributed. In both
box
Statistics 217 (L01) - LAB #1: One-Sample Hypothesis Testing
Please attempt all Cases during this weeks lab. MINITAB use is required. If you have any questions regarding MINITAB, please feel free to ask your TA for assistance. That is what we are here for
Statistics 217 (L01) - LAB #1: Solutions
Lab Exercise 1A:
1. H0 : 3.3 vs. HA : < 3.3.
2. From the boxplot constructed, it appears as if the distribution of the variable GPA is nomrally distributed, with a mean in the neighbourhood of 3. Notice, there are
Statistics 217 (L01) - LAB #2: Type I, Type II, and Power of a Statistical Test
Please attempt Lab Exercises 1 and 2 during the lab period. The remaining two questions can be attempted
as practice.
Lab Exercise 1:
Up until this point, we have talked at le
Statistics 217 (L01): Lab #2 Solutions
Selected Answers:
Lab Exercise 1:
(a) H0 : p 0.20 HA : p < 0.20.
(c) From = 0.05, Reject the null hypothesis if Zcalc < 1.645. Coverting
this decision rule into the pb, one
q
0.20(10.20)
, or reject the null hypothes
Inference for distributions:
- for the mean of a population
IPS chapter 7.1
Objectives (IPS chapter 7.1)
Inference for the mean of one population
!
When is unknown
!
The t distributions
!
The one-sample t confidence interval
!
The one-sample t test
!
Matc
Inference for distributions:
- Optional topics in comparing distributions
IPS chapter 7.3
1
Objectives (IPS chapter 7.3)
Optional topics in comparing distributions
p
Inference for population spread
p
F test
Levenes test
Power of the two-sample t-test
2
In
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Long answer questions
(1a) You are the manager of an affordable light-bulb company. An average lifetime of a
100 Watts incandescent light bulb is 400 hours. Your testing department tested the
lifetime of 100 light bulbs to nd out that the samp
Q 7.20
The number of pizzas delivered to university students each month is a random
variable with the following probability distribution.
x
P(x)
0
0.1
1
0.3
2
0.4
3
0.2
a. Find the probability that a student has received delivery of two or more pizzas
thi
Chapters 4 and 5 Managing Technology and International
Technology is used in managing our operations. Data is collected, analyzed, and used to
make decisions moving the organization forward. Although there is an abundant amount
of data collected, sometime
Statistics 217(L01) Lab #5: Working With Categorical Data
In Labs #1 and #3, you worked with data from a random sample of Statistics 217 students from a population
that is made up of all current Statistics 217 students. The data pertaining to Questions 1,
Statistics 217(L01) Lab #3: Comparing Two Population Means and Variances
Recall from Lab #1, you were asked to use parts (four variables) of a large data set that consisted of data
collected on seventeen different variables from n = 101 students taking St