Virtual Labs

A random sample of 500 apples was taken from a large consignment and 60 were found to be bad. What is the sample proportion of bad apples?

a: 0.012 Explanation

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b: 1.2 Explanation

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c: 0.12 Explanation

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d: 12 Explanation

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A manufacturer claims that 20% of the manufactured products is of good quality. In one day's production of 400 products, only 40 are of good quality. While testing this problem, what will be the alternative hypothesis?

a: P > 0.2 where P is population proportion Explanation

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b: P < 0.2 where P is population proportion Explanation

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c: P = 0.2 where P is population proportion Explanation

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d: P ≠ 0.2 where P is population proportion Explanation

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1D: Hypothesis testing: testing the proportion of a Binomially distributed variable