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Sex ratios and birth order in geese. Is sex detemination truly a random process? The laws of genetics would suggest so because of the random distribution of X and Y chromosomes among spem cells. However, physiological or environmental factors could favor one gender over the other under specific circumstances. A field biologist surveyed a random sample of lesser snow geese nests containing exactly four eggs. For each egg resulting in a live gosling, the laying order and the gender of the gosling were recorded, Here are the data: Observed Order in Which Egg is Laid Sex Total 1. 3 4 Male Female 17 10 27 16 9 25 7. 17 24 45 14 50 a) Are the conditions for a chi-square goodness-of-fit test satisfied? 19 95 Explanation Expected Order in Which Egg is Laid 2 Sex Total e random sampling, the variable under study is categorical and also the expected value of the number sample obseravt b) What are the null and altemative hypotheses for this test? 12.79 14.21 11.84 11.37 12.63 9.00 45 50 95 Male 10.00 19 Female 13.16 Null Hypothesis Altemative Hypothesis 27 25 24 Observed vs. Expected Order in Which Egg is Laid 2 c) What are the expected counts under the null hypothesis? (Fill out Chart on the Right) Sex d) What are the calculated Chi-Square Stats Observed vs. Expected Variances by Sex? (Fill Out Chart on Right) 1 3 4. Male 1.78 1.39 1.25 1.46 1.31 1.68 e) What are the degrees of freedom for this test? Female 1.51 1.60 Degrees of Freedom f) What is the Chi-Square Statistic for this Test? Chi-Square 0.007455086. Hint: This is the Formula Results that Tell us which observation deviates the futherest from Expected g) Is there evidence of a relationship between sex and laying order in lesser snow geese? Explanation

Sex ratios and birth order in geese. Is sex detemination truly a random process? The laws of genetics would suggest so because of the random distribution of X and Y chromosomes among spem cells. However, physiological or environmental factors could favor one gender over the other under specific circumstances. A field biologist surveyed a random sample of lesser snow geese nests containing exactly four eggs. For each egg resulting in a live gosling, the laying order and the gender of the gosling were recorded, Here are the data: Observed Order in Which Egg is Laid Sex Total 1. 3 4 Male Female 17 10 27 16 9 25 7. 17 24 45 14 50 a) Are the conditions for a chi-square goodness-of-fit test satisfied? 19 95 Explanation Expected Order in Which Egg is Laid 2 Sex Total e random sampling, the variable under study is categorical and also the expected value of the number sample obseravt b) What are the null and altemative hypotheses for this test? 12.79 14.21 11.84 11.37 12.63 9.00 45 50 95 Male 10.00 19 Female 13.16 Null Hypothesis Altemative Hypothesis 27 25 24 Observed vs. Expected Order in Which Egg is Laid 2 c) What are the expected counts under the null hypothesis? (Fill out Chart on the Right) Sex d) What are the calculated Chi-Square Stats Observed vs. Expected Variances by Sex? (Fill Out Chart on Right) 1 3 4. Male 1.78 1.39 1.25 1.46 1.31 1.68 e) What are the degrees of freedom for this test? Female 1.51 1.60 Degrees of Freedom f) What is the Chi-Square Statistic for this Test? Chi-Square 0.007455086. Hint: This is the Formula Results that Tell us which observation deviates the futherest from Expected g) Is there evidence of a relationship between sex and laying order in lesser snow geese? Explanation

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Home Insert Draw Page Layout Formulas Data Review View Tell me E From HTML Le. Connectlons 险 Clear Flash Fill R Data Validation v From Text Properties hé Reapply Filter Refresh All Stocks Geogra... Sort Text to Columns Remove Duplicates o Consolidate E New Database Query v lA Edit Links h6 Advanced Analy 30 xv =CHISQ.TEST(G6:J7,G15:J16) B C. D. Sex ratios and birth order in geese. Is sex determination truly a random process? The laws of genetics would suggest so because of the random distribution of X and Y chromosomes among spem cells. However, physiological or environmental factors could favor one gender over the other under specific circumstances. A field biologist surveyed a random sample of lesser snow geese nests containing exactly foureggs. For each egg resulting in a live gosling, the laying order and the gender of the gosling were recorded. Here are the data: Observed Order in Which Egg is Lald 3 Sex Total 1 17 10 27 16 6. 25 7. 17 24 5. 14 19 45 50 95 Male Female a) Are the conditions for a chi-square goodness-of-fit test satisfied? Explanation Expected Order in Which Egg is Laid Sex Total e random sampling, the varlable under study is categorical and also the expected value of the number sample obseravt 2. 3 9.00 10.00 19 45 50 b) What are the null and altemative hypotheses for this test? Male Female 11.37 12.63 24 12.79 11.84 14.21 13.16 Null Hypothesis Alternative Hypothesis 27 25 95 Observed vs. Expected Order in Which Egg is Lald 3 c) What are the expected counts under the null hypothesis? (Fill out Chart on the Right) Sex d) What are the calculated Chi-Square Stats Observed vs. Expected Variances by Sex? (Fill Out Chart on Right) 1 2. 4. Male Female 1.68 1.51 1.78 1.60 e) What are the degrees of freedom for this test? 1.39 1.46 1.25 1.31 Degrees of Freedom 3 ) What is the Chi-Square Statistic for this Test? Chi-Square 0.007455086 Hint: This is the Formula Results that Tell us which observation deviates the futherest from Expected a) Is there evidence of a relationship between sex and laying order in lesser snow geese? Explanation Ch 19 Ch 20 Ch 21 Ch 22 Ch 24
Transcribed Image Text:Home Insert Draw Page Layout Formulas Data Review View Tell me E From HTML Le. Connectlons 险 Clear Flash Fill R Data Validation v From Text Properties hé Reapply Filter Refresh All Stocks Geogra... Sort Text to Columns Remove Duplicates o Consolidate E New Database Query v lA Edit Links h6 Advanced Analy 30 xv =CHISQ.TEST(G6:J7,G15:J16) B C. D. Sex ratios and birth order in geese. Is sex determination truly a random process? The laws of genetics would suggest so because of the random distribution of X and Y chromosomes among spem cells. However, physiological or environmental factors could favor one gender over the other under specific circumstances. A field biologist surveyed a random sample of lesser snow geese nests containing exactly foureggs. For each egg resulting in a live gosling, the laying order and the gender of the gosling were recorded. Here are the data: Observed Order in Which Egg is Lald 3 Sex Total 1 17 10 27 16 6. 25 7. 17 24 5. 14 19 45 50 95 Male Female a) Are the conditions for a chi-square goodness-of-fit test satisfied? Explanation Expected Order in Which Egg is Laid Sex Total e random sampling, the varlable under study is categorical and also the expected value of the number sample obseravt 2. 3 9.00 10.00 19 45 50 b) What are the null and altemative hypotheses for this test? Male Female 11.37 12.63 24 12.79 11.84 14.21 13.16 Null Hypothesis Alternative Hypothesis 27 25 95 Observed vs. Expected Order in Which Egg is Lald 3 c) What are the expected counts under the null hypothesis? (Fill out Chart on the Right) Sex d) What are the calculated Chi-Square Stats Observed vs. Expected Variances by Sex? (Fill Out Chart on Right) 1 2. 4. Male Female 1.68 1.51 1.78 1.60 e) What are the degrees of freedom for this test? 1.39 1.46 1.25 1.31 Degrees of Freedom 3 ) What is the Chi-Square Statistic for this Test? Chi-Square 0.007455086 Hint: This is the Formula Results that Tell us which observation deviates the futherest from Expected a) Is there evidence of a relationship between sex and laying order in lesser snow geese? Explanation Ch 19 Ch 20 Ch 21 Ch 22 Ch 24
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