GROWTH DEVELOPMENT CHILD
SUMMATIVE ASSESSMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A random sample of 12 families were asked how many kids they had. The data is given below. Calculate a 99% confidence interval to estimate the mean number of kids per family.1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4
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(1.985, 3.349)
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(1.705, 3.629)
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(2.110, 3.223)
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(1.566, 3.707)
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Explanation:
Detailed explanation-1: -If the level of confidence is 99%, this means that we are 99% confident that the interval contains the population mean, µ. The corresponding z-scores are ± 2.575.
Detailed explanation-2: -A 99% confidence interval estimate can be interpreted to mean that: If all possible samples are taken and confidence interval estimates are developed, 99% of them would include the true population mean somewhere within their interval.
There is 1 question to complete.