Consider your answer in part (a). What is the probability that pˆD−pˆE is greater than the value found in part (a)? Show your work. (image is my answer in part a, and screenshot is my problem)

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Consider your answer in part (a). What is the probability that pˆD−pˆE is greater than the value found in part (a)? Show your work.

(image is my answer in part a, and screenshot is my problem)

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६६३|
टूछहा ण 3D 09/
もnd=60,メ&ニ11, Pa- "/60-9.1833
Re
ト
やx
nd =40
%3D
ニPa
15
.375
A+
Transcribed Image Text:tlb1°= cE2)0-Gピを ६६३| टूछहा ण 3D 09/ もnd=60,メ&ニ11, Pa- "/60-9.1833 Re ト やx nd =40 %3D ニPa 15 .375 A+
Question 1
Show all your work. Indicate clearly the methods you use, because you will be scored on the
correctness of your methods as well as on the accuracy and completeness of your results and
explanations.
Researchers are studying two populations of sea turtles. In population D, 30 percent of the turtles
have a shell length greater than 2 feet. In population E, 20 percent of the turtles have a shell length
greater than 2 feet. From a random sample of 40 turtles selected from D, 15 had a shell length
greater than 2 feet. From a random sample of 60 turtles selected from E, 11 had a shell length
greater than 2 feet. Let Pp represent the sample proportion for D, and let Pp represent the sample
proportion for E.
(a) What is the value of the difference pp - PR? Show your work.
В
I
!!!
Transcribed Image Text:Question 1 Show all your work. Indicate clearly the methods you use, because you will be scored on the correctness of your methods as well as on the accuracy and completeness of your results and explanations. Researchers are studying two populations of sea turtles. In population D, 30 percent of the turtles have a shell length greater than 2 feet. In population E, 20 percent of the turtles have a shell length greater than 2 feet. From a random sample of 40 turtles selected from D, 15 had a shell length greater than 2 feet. From a random sample of 60 turtles selected from E, 11 had a shell length greater than 2 feet. Let Pp represent the sample proportion for D, and let Pp represent the sample proportion for E. (a) What is the value of the difference pp - PR? Show your work. В I !!!
Expert Solution
Step 1

Given,

 

In Population D:

Population Proportion :Turtles have a shell length greater than 2 feet = 0.3

Random Sample = 40

Turtles have a shell length greater than 2 feet in random sample = 15

 

In Population E:

Population Proportion :Turtles have a shell length greater than 2 feet = 0.2

Random Sample = 60

Turtles have a shell length greater than 2 feet in random sample = 11

 

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