a. In constructing 90% confidence intervals for means, what do we expect will be

Question

a. In constructing 90% confidence intervals for means, what do we expect will be true over the long run? (select all that apply you have two attempts) 90% of the time, the population mean will fall outside the confidence interval. 10% of the time, the population mean will fal outside the confidence interval. 90% of the time, the population mean will fal inside the confidence interval 10% of the time, the population mean will tal inside the confidence interval. b. In constructing 99% confidence intervals for means, what do we expect will be true over the long run, (select all that apply; you have three attempts (Hint: Drawing a diagram of a confidence interval and considering scenarios in which the population mean is inside or outside the interval might help.) 99% of the time, the difference between the sample mean and population mean will be more than the margin of error. 99% of the time, the difference between the sample mean and population mean will be less than the margin of error 1% of the time, the dmerence between the sample mean and population mean wil' be greater than the margin of error 99% of the time, the sample mean and the population mean will be exactly equal to each other. 1% o, the time, the drference between the sample mean and population mean be less than the margin of error.

Explanation / Answer

a)

since its 90% confidence ,so

answer would be

90% of the time,the population mean would fall inside the confidence interval

and

10% of the time,the population mean will fall outside the confidence interval

so its choice B and C

b)

99% of the time,the difference between the sample mean and population mean will be less than margin of error

also,

1% of the time,the difference between the sample mean and population mean will be greater than the margin of error

so its choice B and C

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