FORESTRY
AGRICULTURAL STATISTICS AND ECONOMICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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We can be 98% confident that the method used to get the intervals always gives the correct answer
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98% of all parents will make their kids eat breakfast
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When used repeatedly, the method used to find the interval produces intervals which include the true proportion about 98% of the time
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The kids were 98% confident that they ate breakfast that day.
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Detailed explanation-1: -2000 children were surveyed and the report that followed said, “With 98% confidence, between 20% and 50% of all parents make their children eat breakfast.” What does 98% confidence mean in this situation? The kids were 98% confident that they ate breakfast that day.
Detailed explanation-2: -To obtain this confidence interval, add and subtract the margin of error from the sample mean. This result is the upper limit and the lower limit of the confidence interval.
Detailed explanation-3: -Suppose we want to generate a 95% confidence interval estimate for an unknown population mean. This means that there is a 95% probability that the confidence interval will contain the true population mean. Thus, P( [sample mean]-margin of error < < [sample mean] + margin of error) = 0.95.