Virtual Labs

Consider a sample of 18 observations drawn from standard normal distribution. If we take the sum of squares of all these observations, then its distribution will be:

a: standard normal distribution Explanation

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b: normal distribution with mean 18 and variance 36 Explanation

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c: chi-square distribution with 18 df Explanation

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d: chi-square distribution with 36 df Explanation

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Which of the following distributions looks the most likely as normal distribution?

a: chi-square distribution with 4 df Explanation

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b: chi-square distribution with 5 df Explanation

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c: chi-square distribution with 8 df Explanation

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d: chi-square distribution with 30 df Explanation

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What type of data is suitable for chi-square test for independence?

a: categorical data Explanation

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b: interval data Explanation

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c: ordinal data Explanation

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d: continuous data Explanation

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Which test statuistics is used in chi-square test for independence?

a: z statistics Explanation

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b: t statistics Explanation

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c: F statistics Explanation

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d: chi-square statistics Explanation

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