Melissa Munk
Statistics
Lab Report 1
Part One
The set of number 1, 3, 4, 7, 8 have an average of 4.6, a median of 4, and a standard deviation
of 2.5768.
The spreadsheet calculates that STDEV(A2:A6) is 2.880972058 and it calculates that
STDEVP(A2:A6) is 2.
Melissa Munk
Stats
Lab 2
6. I know that the data point 8 is being included in the 4-8 interval because cell D4 reads 6,
representing data points 5, 5, 6, 6, 7, 8, and cell D5 reads 3, representing data points 10, 11,
11. Therefore these class intervals co
Melissa Munk
Stat 241
Lab 3
8 -Which histogram most closely approximates the probability histogram for a
box model that describes the roll of a die?
This simulation of 2000 die rolls histogram is closer to the probability histogram.
It is equally possible
Stat 241 Exam Two Practice
1. One hundred draws are made from a box containing 1,2,3,4,5,6 and the sum of the draws
comes out to be 328. Fill in the blanks:
The expected value for the sum of the draws is _, the observed value is _,
and the chance error is
Stat 241 Practice Exam
1a. [5pts] Define the term Historical Control and explain its relevance to issues surrounding
the differences between a Randomized Controlled Experiment and an Observational Study.
1b. [5pts] Explain the difference between a quantit
Homework 9
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1. Refer to Example 9.2 (page 512). Use the chi-square test to assess if frequent binge drinking
is associated with gender.
Choose the correct opti
9.1 Inference for Two-Way Tables
True or False:
Chi-square distributions are left-skewed.
False
True
Report this question
Great! The correct answer is
False
Chi-square distributions are generally right-skewed. These distributions are generally rightskewe
The label of a particular brand of extra large olives states that there are about 33 olives in each can. A
gourmet cook feels that the claim of 33 olives per can is too high, but that the average number of olives
per can is less than 33. He samples 35 can
Homework 7
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91%
1. What critical value
from Table D should be used to construct the following:
A 95% confidence interval when n=11?
Fill in the blank:
The critical
The z-score for 274 days is (274 266)/16 = 0.5. From the table, the area to the left of 0.5 is 0.6915.
The z-score for 274 is (274 266)/16 = 8/16 = 0.50. The z-score for 250 is (250 266)/16 = -1.00. The
area to the left of 0.50 is 0.6915. The area to the
12.1 Inference for One-Way Analysis of Variance
Researchers performed a study on the effects of a nonsteroidal anti-inflammatory drug (NSAID)
given before and after arthroscopic knee surgery. A sample of 67 patients undergoing elective
knee arthroscopy wa
Your company produces a sun block lotion designed to protect the skin from both UVA and
UVB exposure to the sun. You hire a company to compare your product with the product sold by
your major competitor. The testing company exposes skin on the back of a s
1
TAKE QUIZ
2
REVIEW
3
STUDY PLAN
4
LEARN!
Chapter 7 Pre-Test
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1. A pediatrician is interested in studying the effect of motrin on reducing temperature in youn
Homework 12
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1. The One-Way ANOVA applet lets you see how the statistic and the -value depend on the
variability of the data within groups and the differences