a) List allsamples size 2 from left to right using without replacement and compute the mean of each sample. ( Round your mean values to 1 decimal place.)
Sample. Values. Sum. Mean
b) Compute the mean of the distribution of sample means and the population mean. (Round your answer to 1 decimal place.)
Mean of the distribution of the sample mean
a) sample 1, using "2": 2, 3; sum=5; mean=2.5
2, 5; sum=7; mean=3.5
2, 7; sum=9; mean=3
sample 2, using "3"
sample 3, using first "5"
sample 4, using second "5"
sample 5, using "7"
b) sample mean=(2.5+3.5+3.5+3+2.5+4+4+5+3.5+4+4+6+3.5+4+4+6+4.5+5+6+6)/20=4.2
Compare the sample mean and the population mean, they are approximately the same.
If you have any further questions, feel free to contact me.
I dont understand there is 10 samples not 5
well it should be 5, you sure they are not letting you to choose how many sample size (lines) to fill out?
Can you help me with more homework problems
I'm not an expert in this subject but I learnt it before and I will try my best so please send your questions over. Thanks
A normal population has a mean of 78 and a standard deviation of 6. You select a sample of 50. Compute the probability the sample mean is :( Round z value to 2 decimal places and final answer to 4 decimal places )
a ) Less than 77
b)Between 77 and 79
c) Between 79 and 80
d) Greater than 80
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