Introduction To Statistics And Data Analysis
6th Edition
ISBN: 9781337794503
Author: PECK
Publisher: Cengage
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Chapter 12.1, Problem 13E
A certain genetic characteristic of a particular plant can appear in one of three forms (phenotypes).
A researcher has developed a theory, according to which the hypothesized proportions are p1 = 0.25, p2 = 0.50, and p3 = 0.25. A random sample of 200 plants yields X2 = 4.63.
- a. Carry out a test of the null hypothesis that the theory is correct, using level of significance α = 0.05.
- b. Suppose that a random sample of 300 plants had resulted in the same value of X2. How would the analysis and conclusion differ from those in Part (a)?
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Apply STATA commands & submit the output for each question only when
indicated below
i.
Generate the log of birthweight and family income of children. Name
these new variables Ibwght & Ifaminc. Include the output of this
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ii. Apply the command sum with the detail option to the variable
faminc. Note: you should find the 25th percentile value, the 50th
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you will need it to answer the next question Include the output of this
code.
iii.
iv.
Use the output from part ii of this question to Generate a variable
called "high_faminc" that takes a value 1 if faminc is less than or
equal to the 25th percentile, it takes the value 2 if faminc is greater
than 25th percentile but less than or equal to the 50th percentile, it
takes the value 3 if faminc is greater than 50th percentile but less than
or equal to the 75th percentile, it takes the value 4 if faminc is greater
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solve this on paper
Chapter 12 Solutions
Introduction To Statistics And Data Analysis
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