A psychologist is collecting data on the time it takes to learn a certain task.For 50 randomly selected adult subjects,the sample mean is 16.40 minutes and the sample standard deviation is 4.00 minutes.The 95% confidence interval for the mean time required by all adults to learn the task would be _____.
A)[8.56,24.24]
B)[15.47,17.33]
C)[16.24,16.56]
D)[15.26,17.54]
E)[17.12,48.48]

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The Answer of A psychologist is collecting data on the time it takes to learn a certain task.For 50 randomly selected adult subjects,the sample mean is 16.40 minutes and the sample standard deviation is 4.00 minutes.The 95% confidence interval for the mean time required by all adults to learn the task would be _____.
A)[8.56,24.24]
B)[15.47,17.33]
C)[16.24,16.56]
D)[15.26,17.54]
E)[17.12,48.48]

A Psychologist Is Collecting Data on the Time It Takes