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- Collaborative statistics
- The chi-square distribution
- Practice 2: contingency tables
This module provides a practice on Chi-Square Distribution as a part of Collaborative Statistics collection (col10522) by Barbara Illowsky and Susan Dean.
Student learning outcomes
- The student will conduct a test for independence using contingency tables.
Conduct a hypothesis test to determine if smoking level and ethnicity are independent.
Collect the data
Copy the data provided in
Probability Topics Practice 1: Contingency Tables into the table below.
Smoking levels by ethnicity (observed)
| Smoking Level Per Day |
African American |
Native Hawaiian |
Latino |
Japanese Americans |
White |
TOTALS |
| 1-10 |
|
|
|
|
|
|
| 11-20 |
|
|
|
|
|
|
| 21-30 |
|
|
|
|
|
|
| 31+ |
|
|
|
|
|
|
| TOTALS |
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Hypothesis
State the hypotheses.
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Expected values
Enter expected values in the above below. Round to two decimal places.
Analyze the data
Calculate the following values:
Graph the data
Conclusions
State the decision and conclusion (in a complete sentence) for the following preconceived levels of
.
Questions & Answers
(Pcos∅+qsin∅)/(pcos∅-psin∅)
how to answer the activity
how to solve the activity
Chabelita
solve for X,,4^X-6(2^)-16=0
sobhan Singh jina uniwarcity tignomatry ka long answers tile questions
t he silly nut company makes two mixtures of nuts: mixture a and mixture b. a pound of mixture a contains 12 oz of peanuts, 3 oz of almonds and 1 oz of cashews and sells for $4. a pound of mixture b contains 12 oz of peanuts, 2 oz of almonds and 2 oz of cashews and sells for $5. the company has 1080
If
, ,
are the roots of the equation
3 2 0,
x px qx r
Find the value of
1
.
Parts of a pole were painted red, blue and yellow. 3/5 of the pole was red and 7/8 was painted blue. What part was painted yellow?
Parts of the pole was painted red, blue and yellow. 3 /5 of the pole was red and 7 /8 was painted blue. What part was painted yellow?
Patrick
how I can simplify algebraic expressions
Lairene and Mae are joking that their combined ages equal Sam’s age. If Lairene is twice Mae’s age and Sam is 69 yrs old, what are Lairene’s and Mae’s ages?
lairenea's age is 23yrs
ACKA
Laurene is 46 yrs and Mae is 23 is
Solomon
age does not matter
christopher
solve for X, 4^x-6(2*)-16=0
Alieu
prove`x^3-3x-2cosA=0
(-π<A<=π
create a lesson plan about this lesson
Excusme but what are you wrot?
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Source:
OpenStax, Collaborative statistics. OpenStax CNX. Jul 03, 2012 Download for free at http://cnx.org/content/col10522/1.40
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