Neco Model Questions Vol1 2022 Agricultural Science Question 25

Practice objective / multiple choice question 25 from the 2022 Neco Model Questions Vol1 Agricultural Science examination.

Neco Model Questions Vol1 2022 Agricultural Science Objective / Multiple Choice Medium Difficulty
Question 25 NECO_MODEL_QUESTIONS_VOL1 • 2022 • AGRICULTURAL_SCIENCE • objective

A farmer inspects 200 plants for a particular disease. In the first random sample of 50 plants, 8 are diseased. In a second random sample of 150 plants, 27 are diseased. Using the combined data, estimate the overall disease incidence proportion and give the 95 % confidence interval using the Wilson score method (use \(z=1.96\)). Express the incidence as a percentage and the interval limits to one decimal place.

Answer Options

A. 19.8% (95% CI: 14.5% - 25.2%)
B. 15.2% (95% CI: 10.8% - 20.1%)
Correct Answer C. 17.5% (95% CI: 12.9% - 23.4%)
D. 13.6% (95% CI: 9.2% - 18.0%)
Correct Answer
C
Correct Option:
17.5% (95% CI: 12.9% - 23.4%)

About This Question

This is Neco Model Questions Vol1 2022 Agricultural Science Question 25. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Agricultural Science examination.

Difficulty level: Medium .

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