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Asked: 2022-04-06T22:19:37+05:30 In:

A normal population has mean of 6.8 and standard deviation 1.5. A sample of 400 members gave a mean of 6.75. …

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A normal population has mean of 6.8 and standard deviation 1.5. A sample of 400 members gave a mean of 6.75. Is the difference significant .

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      A normal population has mean of 6.8 and standard deviation 1.5. A sample of 400 members gave a mean of 6.75. Is the difference significant .

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