Explanation Given info: The values of p = 0.7 and n = 12 . Calculation: The value is p = 0.7 . The value of q is 0.3 (1–0.7). The total number n is 12. Requirement check: Condition 1: n p ≥ 5 Condition 2: n q ≥ 5 Condition 1: n p ≥ 5 Substitute 12 for n and 0.7 for p in the np . n p = 12 × 0.7 = 8.4 Thus, the given requirement 8.4 ≥ 5 is satisfied. Condition 2: n q ≥ 5 Substitute 12 for n and 0

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ISBN: 9780321924599

Author: Mario F. Triola

Publisher: PEARSON

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Chapter 6.7, Problem 6BSC

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To obtain: P(fewer than 8) if requirements of np≥5 and nq≥5 are both satisfied otherwise state the normal approximation is not appropriate if np<5 or nq<5 .

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Chapter 6.7, Problem 5BSC

Chapter 6.7, Problem 7BSC

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To obtain: P ( fewer than 8 ) if requirements of n p ≥ 5 and n q ≥ 5 are both satisfied otherwise state the normal approximation is not appropriate if n p < 5 or n q < 5 .

Solution Summary: The author explains that the requirement nqge 5 is not satisfied, hence the normal approximation should not be used.

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To obtain: P(fewer than 8) if requirements of np≥5 and nq≥5 are both satisfied otherwise state the normal approximation is not appropriate if np<5 or nq<5 .

Want to see the full answer?

Chapter 6 Solutions

To obtain: P ( fewer than 8 ) if requirements of n p ≥ 5 and n q ≥ 5 are both satisfied otherwise state the normal approximation is not appropriate if n p &lt; 5 or n q &lt; 5 .

Solution Summary: The author explains that the requirement nqge 5 is not satisfied, hence the normal approximation should not be used.

Concept explainers

Videos

To obtain: P(fewer than 8) if requirements of np≥5 and nq≥5 are both satisfied otherwise state the normal approximation is not appropriate if np<5 or nq<5 .

Want to see the full answer?

Chapter 6 Solutions

To obtain: P ( fewer than 8 ) if requirements of n p ≥ 5 and n q ≥ 5 are both satisfied otherwise state the normal approximation is not appropriate if n p < 5 or n q < 5 .