A researcher is 95% confident that the interval from 19.8 to 31.5 captures y = the true mean number of unbroken crackers in a certain-sized bag.
Is it plausible that the true mean number of unbroken crackers for all bags of this size may be 30?
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No, this is not a plausible value for the population mean, because 30 is within the 95% confidence interval.
No, this is not a plausible value for the population mean, because 30 is not within the 95% confidence interval.
Yes, this is a plausible value for the population mean, because 30 is within the 95% confidence interval.
Yes, this is a plausible value for the population mean, because 30 is not within the 95% confidence interval.