Over the entire days that the rural students attend business statistics online lecture, they are unable to join, on aver

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Over the entire days that the rural students attend business statistics online lecture, they are unable to join, on average, 8 days due to slow internet connection. Assume that the standard deviation over this time period is a = 2 days. At the end of the semester, a random sample of 40 students is taken and asked how many days of lecture they missed due to slow internet connection.
What is the standard deviation for the sampling distribution of the average number of online lecture days missed due to slow internet connection?
A. 0.3162
B. 0.6324
C. 1.2649
D. 2.5298
The probability that the sample mean is less than 9 online lecture days isA. 0.0008B. 0.1401C. 0.9984D. 0.9992
The probability that the sample mean is less than 9 online lecture days is
A. 0.0008
B. 0.1401
C. 0.9984
D. 0.9992
The probability that the sample mean is between 7 and 9 online lecture days isA. 0.0008 B. 0.1401C. 0.9984D. 0.9992
The probability that the sample mean is between 7 and 9 online lecture days is
A. 0.0008 B. 0.1401
C. 0.9984
D. 0.9992
What is the expected value for the sampling distribution of the average number of online lecture days missed due to slow internet connection?A. 2B. 8C. 16D. 40
What is the expected value for the sampling distribution of the average number of online lecture days missed due to slow internet connection?
A. 2
B. 8
C. 16
D. 40