vas sified into one of three genotypes: E4/E4, E4/E4, and E4/E4. In addition to a sample of 2,098 young adults (20-24 years), two other age groups were studied: a sample of 2,182 middle-aged adults (40-44 years) and a sample of 2,282 elderly adults (60-64 years). The accompanying table gives a breakdown of the number of adults with the three genotypes in each age category for the total sample of 6,562 adults. Researchers concluded that "there were no significant genotype differences across the three age groups" using a=0.05. Are they correct? Click the icon to view the genotype data. State the null and alternative hypotheses. Ho: Age group and genotype are independent. Ha: Age group and genotype are dependent. Determine the test statistic. (Round to three decimal places as needed.) Determine the p-value. Genotype Data Age E4*/E4* Group Genotype 20-24 40-44 60-64 Totals The p-value is (Round to three decimal places as needed.) State the conclusion. Do not reject Ho. There is not sufficient evidence to conclude that age group and genotype are dependent. 744 48 49 57 Print E4/E4 E4/E4 Genotype Genotype 1,523 1,572 518 566 564 1,648 1,670 4,765 Done 0 - X The researchers are correct.
vas sified into one of three genotypes: E4/E4, E4/E4, and E4/E4. In addition to a sample of 2,098 young adults (20-24 years), two other age groups were studied: a sample of 2,182 middle-aged adults (40-44 years) and a sample of 2,282 elderly adults (60-64 years). The accompanying table gives a breakdown of the number of adults with the three genotypes in each age category for the total sample of 6,562 adults. Researchers concluded that "there were no significant genotype differences across the three age groups" using a=0.05. Are they correct? Click the icon to view the genotype data. State the null and alternative hypotheses. Ho: Age group and genotype are independent. Ha: Age group and genotype are dependent. Determine the test statistic. (Round to three decimal places as needed.) Determine the p-value. Genotype Data Age E4*/E4* Group Genotype 20-24 40-44 60-64 Totals The p-value is (Round to three decimal places as needed.) State the conclusion. Do not reject Ho. There is not sufficient evidence to conclude that age group and genotype are dependent. 744 48 49 57 Print E4/E4 E4/E4 Genotype Genotype 1,523 1,572 518 566 564 1,648 1,670 4,765 Done 0 - X The researchers are correct.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Solve for test statistic
Transcribed Image Text:particular strand of DNA was classified into one of three genotypes: E4/E4, E4/E4, and E4/E4. In addition to a sample of 2,098 young adults (20-24 years), two other age groups
were studied: a sample of 2,182 middle-aged adults (40-44 years) and a sample of 2,282 elderly adults (60-64 years). The accompanying table gives a breakdown of the number of adults with the
three genotypes in each age category for the total sample of 6,562 adults. Researchers concluded that "there were no significant genotype differences across the three age groups" using
a = 0.05. Are they correct?
Click the icon to view the genotype data.
State the null and alternative hypotheses.
Ho: Age group and genotype are independent.
Ha: Age group and genotype are dependent.
Determine the test statistic.
x2=0
(Round to three decimal places as needed.)
Determine the p-value.
Genotype Data
Age E4* /E4*
Group Genotype
57
20-24
40-44
44
60-64
48
Totals
149
The p-value is.
(Round to three decimal places as needed.)
State the conclusion.
Do not reject Ho. There is not sufficient evidence to conclude that age group and genotype are dependent.
Print
E4*/E4
Genotype
518
566
564
1,648
D
E4/E4
Genotype
1,523
1,572
1,670
4,765
Done
- X
The researchers are correct.
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