STATISTICAL TECHNIQUES AND TOOLS
SAMPLING DISTRIBUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A sample of 20 cupcakes found the interval for calories to be (150, 350). Which is the correct interpretation of the 95% confidence interval?
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We are 95% confident that the true mean calorie content can be found with a sample of 150 to 350 cupcakes.
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We are 95% confident that the true mean calorie content in cupcakes is between 150 and 350 calories.
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We are 95% confident that a sample of 20 cupcakes will find 250 calories per cupcake.
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None of these are correct.
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Explanation:
Detailed explanation-1: -A sample of 20 cupcakes found the interval for calories to be (150, 350). Which is the correct interpretation of the 95% confidence interval? We are 95% confident that the true mean calorie content can be found with a sample of 150 to 350 cupcakes.
Detailed explanation-2: -(Note that Z=1.645 to reflect the 90% confidence level.)
There is 1 question to complete.