Elementary Statistics with Student Access Kit
12th Edition
ISBN: 9780321869470
Author: Mario F. Triola
Publisher: PEARSON
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Chapter 13.4, Problem 9BSC
To determine
To test: The claim that the subjects with medium lead levels have a full IQ scores with a higher
To check: Whether the lead level appears to affect full IQ scores or not.
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1. Find the mean of the x-values (x-bar)
and the mean of the y-values (y-bar) and write/label each here:
2. Label the second row in the table using proper notation; then, complete the table. In the fifth and sixth
columns, show the 'products' of what you're multiplying, as well as the answers.
X
y
x minus x-bar y minus y-bar (x minus x-bar)(y minus y-bar)
(x minus x-bar)^2
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34
4-2
5 2
3. Write the sums that represents Sxx and Sxy in the table, at the bottom of their respective columns.
4. Find the slope of the Regression line: bi
=
(simplify your answer)
5. Find the y-intercept of the Regression line, and then write the equation of the Regression line.
Show your work. Then, BOX your final answer. Express your line as "y-hat equals...
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
code.
ii. Apply the command sum with the detail option to the variable
faminc. Note: you should find the 25th percentile value, the 50th
percentile and the 75th percentile value of faminc from the output -
you will need it to answer the next question Include the output of this
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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
than the 75th percentile. Include the outcome of this code…
solve this on paper
Chapter 13 Solutions
Elementary Statistics with Student Access Kit
Ch. 13.2 - Prob. 1BSCCh. 13.2 - Prob. 2BSCCh. 13.2 - Prob. 3BSCCh. 13.2 - Prob. 4BSCCh. 13.2 - Prob. 5BSCCh. 13.2 - Prob. 6BSCCh. 13.2 - Prob. 7BSCCh. 13.2 - Prob. 8BSCCh. 13.2 - Prob. 9BSCCh. 13.2 - Prob. 10BSC
Ch. 13.2 - In Exercises 9-12, use the sign test for the data...Ch. 13.2 - Prob. 12BSCCh. 13.2 - Prob. 13BSCCh. 13.2 - In Exercises 13-16, use the sign test for the...Ch. 13.2 - Prob. 15BSCCh. 13.2 - In Exercises 13-16, use the sign test for the...Ch. 13.2 - Appendix B Data Sets.In Exercises 13-16, refer to...Ch. 13.2 - Prob. 18BSCCh. 13.2 - Appendix B Data Sets.In Exercises 17-20, refer to...Ch. 13.2 - Appendix B Data Sets.In Exercises 17-20, refer to...Ch. 13.2 - Procedures for Handling Ties In the sign test...Ch. 13.2 - Prob. 22BBCh. 13.3 - Wilcoxon Signed-Ranks Test for Freshman 15 The...Ch. 13.3 - Prob. 2BSCCh. 13.3 - Prob. 3BSCCh. 13.3 - Prob. 4BSCCh. 13.3 - Prob. 5BSCCh. 13.3 - Prob. 6BSCCh. 13.3 - Using the Wilcoxon Signed-Ranks Test.In Exercises...Ch. 13.3 - Prob. 8BSCCh. 13.3 - Prob. 9BSCCh. 13.3 - Prob. 10BSCCh. 13.3 - Appendix B Data Sets.In Exercises 9-12, refer to...Ch. 13.3 - Prob. 12BSCCh. 13.3 - Prob. 13BBCh. 13.4 - Prob. 1BSCCh. 13.4 - Prob. 2BSCCh. 13.4 - Prob. 3BSCCh. 13.4 - Prob. 4BSCCh. 13.4 - Prob. 5BSCCh. 13.4 - Prob. 6BSCCh. 13.4 - Prob. 7BSCCh. 13.4 - Prob. 8BSCCh. 13.4 - Prob. 9BSCCh. 13.4 - Prob. 10BSCCh. 13.4 - Prob. 11BSCCh. 13.4 - Prob. 12BSCCh. 13.4 - Prob. 13BBCh. 13.4 - Prob. 14BBCh. 13.5 - Effect of Lead on IQ Score Listed below are full...Ch. 13.5 - Prob. 2BSCCh. 13.5 - Notation For the data given in Exercise 1,...Ch. 13.5 - Prob. 4BSCCh. 13.5 - Prob. 5BSCCh. 13.5 - Prob. 6BSCCh. 13.5 - Prob. 7BSCCh. 13.5 - Using tho Kruskal-Wallis Test.In Exercises 5-8,...Ch. 13.5 - Prob. 9BSCCh. 13.5 - Prob. 10BSCCh. 13.5 - Prob. 11BSCCh. 13.5 - Car Crash Measurements Refer to Data See 13 in...Ch. 13.5 - Prob. 13BBCh. 13.6 - Regression If the methods of this section arc used...Ch. 13.6 - Level of Measurement Which of the levels of...Ch. 13.6 - Prob. 3BSCCh. 13.6 - Prob. 4BSCCh. 13.6 - Prob. 5BSCCh. 13.6 - Prob. 6BSCCh. 13.6 - Prob. 7BSCCh. 13.6 - Testing for Rank Correlation. In Exercises 7-12,...Ch. 13.6 - Prob. 9BSCCh. 13.6 - Testing for Rank Correlation. In Exercises 7-12,...Ch. 13.6 - Prob. 11BSCCh. 13.6 - Prob. 12BSCCh. 13.6 - Appendix B Data Sets. In Exercises 13-16, use the...Ch. 13.6 - Prob. 14BSCCh. 13.6 - Appendix B Data Sets. In Exercises 13-16, use the...Ch. 13.6 - Prob. 16BSCCh. 13.6 - Prob. 17BBCh. 13.7 - Prob. 1BSCCh. 13.7 - Prob. 2BSCCh. 13.7 - Prob. 3BSCCh. 13.7 - Prob. 4BSCCh. 13.7 - Prob. 5BSCCh. 13.7 - Prob. 6BSCCh. 13.7 - Prob. 7BSCCh. 13.7 - Prob. 8BSCCh. 13.7 - Prob. 9BSCCh. 13.7 - Baseball World Series Victories Test the claim...Ch. 13.7 - Prob. 11BSCCh. 13.7 - Prob. 12BSCCh. 13 - Prob. 1CQQCh. 13 - Prob. 2CQQCh. 13 - Prob. 3CQQCh. 13 - Prob. 4CQQCh. 13 - Prob. 5CQQCh. 13 - Prob. 6CQQCh. 13 - Prob. 7CQQCh. 13 - Prob. 8CQQCh. 13 - Prob. 9CQQCh. 13 - Sign Test Identify three different applications of...Ch. 13 - Prob. 1RECh. 13 - Prob. 2RECh. 13 - Prob. 3RECh. 13 - Prob. 4RECh. 13 - Prob. 5RECh. 13 - Using Nonparametric Tests. In Exercises 110, use a...Ch. 13 - Prob. 7RECh. 13 - Prob. 8RECh. 13 - Prob. 9RECh. 13 - Prob. 10RECh. 13 - Prob. 1CRECh. 13 - Please be aware that some of the following...Ch. 13 - Prob. 3CRECh. 13 - Prob. 4CRECh. 13 - Prob. 5CRECh. 13 - Prob. 6CRECh. 13 - Prob. 7CRECh. 13 - Prob. 8CRECh. 13 - Prob. 9CRECh. 13 - Prob. 10CRECh. 13 - Prob. 11TPCh. 13 - Prob. 10FDD
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