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Answer the questions in the screenshot below, please verify your answer is correct. Thank you! A set of 150 data values from a breeding experiment
Answer the questions in the screenshot below, please verify your answer is correct. Thank you!
A set of 150 data values from a breeding experiment is tested against a genetic model using a chi-square 4. test at a 2 % level of significance. If there are 5 categories of offspring listed and the chi-square value is 11.58, which of the following conclusions are valid? The data are significant and the hypothesis that the data fits the model should be rejected. II. The data are not significant and we fail to reject the hypothesis that the data fits the model. III. The data would not be significant if the test were conducted at the 1% level of significance. (a) Ionly [b) II only (c) I and III only (d) II and III only. (e) There is insufficient data to make any conclusions. 5) A medical researcher tests 640 heart attack victims for the presence of a certain antibody in their blood and cross-classifies against the severity of the attack. The results are reported in the following table: Severe Medium Mild Positive Test 85 125 150 Negative Test 40 95 145 Is there evidence of a relationship between presence of the antibody and severity of the heart attack? Test at the 5% significance level. a. There is evidence that presence of the antibody causes more severe heart attacks. b. There is evidence that heart attacks cause the antibody to form. C. There is evidence of a relationship between presence of the antibody and occurrence of a heart attack. d. There is evidence of a relationship between presence of the antibody and severity of the heart attack. e. At the 5% significance level there is not sufficient evidence of any relationship. 6) A study of accident records at a large engineering company in England reported the following number of injuries on each shift for 1 year: Shift: Morning Afternoon Night Injuries: 1372 1578 1686 Is there sufficient evidence to say that the number of accidents on the three shifts are not the same? Test at the .05, .01,. 001 levels. a. There is sufficient evidence at all three levels to say that the number of accidents on each shift are not the same. . b. There is sufficient evidence at the .05 level but not at the .01 and .001 levels. C. There is sufficient evidence at the .05 and .01 levels but not at the .001 level. P There is sufficient evidence at the .001 level but not at the .01 and .05 levels. e. There is sufficient evidence at the .001 level but not at the .01 and .05 levels. f. " There is not sufficient evidence at any of these levels
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