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Mickey used R in fitting the probit model. He obtained the following values: a = 3.27 and b = 1.46. The estimated value of the LD50 is grams. A. 5.66 B. 1.18 C. 12.09 D. 15.31

Mickey used R in fitting the probit model. He obtained the following values: a = 3.27 and b = 1.46. The estimated value of the LD50 is grams. A. 5.66 B. 1.18 C. 12.09 D. 15.31

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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(O11) Helping tags: Statistics, Analysis of Relationships Among Variables, Logistic Regression Analysis, Linear Discriminant Analysis

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WILL UPVOTE, just pls help me answer the following questions in the attached image. Pls show complete solutions and explain them. Thank you!

11.10. Mickey wanted to determine the lethal dose for rat poison. He then observed a random sample of 350 rats equally divided among seven doses (in grams) of rat poison. The data is given below: Dose (in grams) 10 15 20 23828 35 50 70 90 Number of rats 50 50 50 50 50 50 50 Number of rats killed 20 26 27 36 35 41 45 Table 3.2 Transformation of percentages to probits % 0 1 2 3 4 5 6 7 8 9 0 3.36 3.45 3.52 3.59 3.66 3.92 3.96 4.01 4.05 4.08 4.12 10 2.67 2.95 3.12 3.25 3.72 3.77 3.82 3.87 20 4.16 4.19 4.23 4.26 4.29 4.33 4.36 4.39 4.42 4.45 30 4.48 4.50 4.53 4.56 4.59 4.61 4.64 4.67 4.67 4.69 4.72 40 4.75 4.77 4.80 4.82 4.85 4.87 4.90 4.85 4.87 4.90 4.92 4.95 4.97 50 5.00 5.03 5.05 5.08 5.10 5.13 5.15 5.18 5.20 5.23 60 5.25 5.28 5.31 5.33 5.36 5.39 5.41 5.44 5.47 5.50 70 5.52 5.55 5.58 5.61 5.64 5.67 5.71 5.74 5.77 5.81 80 5.84 5.88 5.92 5.95 5.99 6.04 6.08 6.13 6.18 6.23 90 6.28 6.34 6.41 6.48 6.55 6.64 6.75 6.48 6.55 6.64 6.75 6.88 7.05 7.33 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 7.58 7.65 7.75 7.88 8.09 99 7.33 7.37 7.41 7.46 7.51 - Mickey used R in fitting the probit model. He obtained the following values: a = 3.27 and b = 1.46. The estimated value of the LD50 is grams. A. 5.66 B. 1.18 C. 12.09 D. 15.31
Transcribed Image Text:11.10. Mickey wanted to determine the lethal dose for rat poison. He then observed a random sample of 350 rats equally divided among seven doses (in grams) of rat poison. The data is given below: Dose (in grams) 10 15 20 23828 35 50 70 90 Number of rats 50 50 50 50 50 50 50 Number of rats killed 20 26 27 36 35 41 45 Table 3.2 Transformation of percentages to probits % 0 1 2 3 4 5 6 7 8 9 0 3.36 3.45 3.52 3.59 3.66 3.92 3.96 4.01 4.05 4.08 4.12 10 2.67 2.95 3.12 3.25 3.72 3.77 3.82 3.87 20 4.16 4.19 4.23 4.26 4.29 4.33 4.36 4.39 4.42 4.45 30 4.48 4.50 4.53 4.56 4.59 4.61 4.64 4.67 4.67 4.69 4.72 40 4.75 4.77 4.80 4.82 4.85 4.87 4.90 4.85 4.87 4.90 4.92 4.95 4.97 50 5.00 5.03 5.05 5.08 5.10 5.13 5.15 5.18 5.20 5.23 60 5.25 5.28 5.31 5.33 5.36 5.39 5.41 5.44 5.47 5.50 70 5.52 5.55 5.58 5.61 5.64 5.67 5.71 5.74 5.77 5.81 80 5.84 5.88 5.92 5.95 5.99 6.04 6.08 6.13 6.18 6.23 90 6.28 6.34 6.41 6.48 6.55 6.64 6.75 6.48 6.55 6.64 6.75 6.88 7.05 7.33 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 7.58 7.65 7.75 7.88 8.09 99 7.33 7.37 7.41 7.46 7.51 - Mickey used R in fitting the probit model. He obtained the following values: a = 3.27 and b = 1.46. The estimated value of the LD50 is grams. A. 5.66 B. 1.18 C. 12.09 D. 15.31
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