Suppose that a 90% confidence interval for a population mean is given to be from

Question

Suppose that a 90% confidence interval for a population mean is given to be from 550 to 650, The 90% value in this statement indicates that: (choose the one best answer) ement indicates that: (choose the one best answer) , p ( 550 There is a 90% chance that falls between 550 and 650 When the statistical techniques in this unit are applied to build a 90% confidence interval around the mean of any randomly collected sample, we can only expect 90% of such calculated intervals to contain the true value of There is a 90% chance that the collected sample mean will be between 550 and 650 A 650 ) = 0.90 B. C. D.

Explanation / Answer

90% confidence interval for a population mean is from 550 to 650.

So Option A is incorrect.

The confidence level is the frequency (i.e., the proportion) of possible confidence intervals that contain the true value of their corresponding parameter. In other words, if confidence intervals are constructed using a given confidence level in an infinite number of independent experiments, the proportion of those intervals that contain the true value of the parameter will match the confidence level.

so that declines the option B and D also.

Now, option C is correct as for repeated number of samples, this option is correct.

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