The probability that Jodi scores 85 % or less on a 100-question test.

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Answer 1

Question

Chapter 5.2, Problem 71E

(a)

To determine

To find: The probability that Jodi scores 85% or less on a 100-question test.

(b)

To determine

To find: The probability that Jodi will score 85% or lower If the test contains 250 questions.

(c)

To determine

To find: The number of questions must the test contain in order to reduce the standard deviation of Jodi’s proportion of correct answers to half its value for a 100-item test.

(d)

To determine

To explain: The answer you gave in part(c) for the standard deviation of Jodi’s score apply to Laura’s standard deviation also.

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Answer 2

Question

Chapter 5.2, Problem 71E

(a)

To determine

To find: The probability that Jodi scores 85% or less on a 100-question test.

(b)

To determine

To find: The probability that Jodi will score 85% or lower If the test contains 250 questions.

(c)

To determine

To find: The number of questions must the test contain in order to reduce the standard deviation of Jodi’s proportion of correct answers to half its value for a 100-item test.

(d)

To determine

To explain: The answer you gave in part(c) for the standard deviation of Jodi’s score apply to Laura’s standard deviation also.

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Answer 3

Question

Chapter 5.2, Problem 71E

(a)

To determine

To find: The probability that Jodi scores 85% or less on a 100-question test.

(b)

To determine

To find: The probability that Jodi will score 85% or lower If the test contains 250 questions.

(c)

To determine

To find: The number of questions must the test contain in order to reduce the standard deviation of Jodi’s proportion of correct answers to half its value for a 100-item test.

(d)

To determine

To explain: The answer you gave in part(c) for the standard deviation of Jodi’s score apply to Laura’s standard deviation also.

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Answer 4

Question

Chapter 5.2, Problem 71E

(a)

To determine

To find: The probability that Jodi scores 85% or less on a 100-question test.

(b)

To determine

To find: The probability that Jodi will score 85% or lower If the test contains 250 questions.

(c)

To determine

To find: The number of questions must the test contain in order to reduce the standard deviation of Jodi’s proportion of correct answers to half its value for a 100-item test.

(d)

To determine

To explain: The answer you gave in part(c) for the standard deviation of Jodi’s score apply to Laura’s standard deviation also.

Expert Solution & Answer

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Answer 5

Chapter 5.2, Problem 71E

(a)

To determine

To find: The probability that Jodi scores 85% or less on a 100-question test.

(b)

To determine

To find: The probability that Jodi will score 85% or lower If the test contains 250 questions.

(c)

To determine

To find: The number of questions must the test contain in order to reduce the standard deviation of Jodi’s proportion of correct answers to half its value for a 100-item test.

(d)

To determine

To explain: The answer you gave in part(c) for the standard deviation of Jodi’s score apply to Laura’s standard deviation also.

Answer 6

Chapter 5.2, Problem 71E

(a)

To determine

To find: The probability that Jodi scores 85% or less on a 100-question test.

Answer 7

Chapter 5.2, Problem 71E

(a)

To determine

To find: The probability that Jodi scores 85% or less on a 100-question test.

Answer 8

(b)

To determine

To find: The probability that Jodi will score 85% or lower If the test contains 250 questions.

Answer 9

(b)

To determine

To find: The probability that Jodi will score 85% or lower If the test contains 250 questions.

Answer 10

(c)

To determine

To find: The number of questions must the test contain in order to reduce the standard deviation of Jodi’s proportion of correct answers to half its value for a 100-item test.

Answer 11

(c)

To determine

To find: The number of questions must the test contain in order to reduce the standard deviation of Jodi’s proportion of correct answers to half its value for a 100-item test.

Answer 12

(d)

To determine

To explain: The answer you gave in part(c) for the standard deviation of Jodi’s score apply to Laura’s standard deviation also.

Answer 13

(d)

To determine

To explain: The answer you gave in part(c) for the standard deviation of Jodi’s score apply to Laura’s standard deviation also.

Answer 14

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Answer 15

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Answer 16

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Answer 17

Ch. 5.1 - Prob. 1UYK Ch. 5.1 - Prob. 2UYK Ch. 5.1 - Prob. 3UYK Ch. 5.1 - Prob. 4UYK Ch. 5.1 - Prob. 5UYK Ch. 5.1 - Prob. 6UYK Ch. 5.1 - Prob. 7UYK Ch. 5.1 - Prob. 8UYK Ch. 5.1 - Prob. 9E Ch. 5.1 - Prob. 10E

The probability that Jodi scores 85 % or less on a 100-question test.

Solution Summary: The author calculates the probability that Jodi scores 85% or less on a 100-question test.

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To find: The probability that Jodi scores 85% or less on a 100-question test.

To find: The probability that Jodi will score 85% or lower If the test contains 250 questions.

To find: The number of questions must the test contain in order to reduce the standard deviation of Jodi’s proportion of correct answers to half its value for a 100-item test.

To explain: The answer you gave in part(c) for the standard deviation of Jodi’s score apply to Laura’s standard deviation also.

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Chapter 5 Solutions