Answer: 34 degrees of freedom should be used to find the p-value of the test .
Step-by-step explanation:
Degrees of Freedom relates to the maximum number of independent values, that have independence to vary in the sample.
Given : When testing the difference between two population means and the population variances are unknown and unequal, the degrees of freedom are calculated as 34.7.
But degree of freedom must be an integer , so we find the greatest integer less than equal to the calculated degree of freedom.
i.e. [df]=[34.7]= 34
Thus , 34 degrees of freedom should be used to find the p-value of the test .
7.91 = 8 21.9 = 22
8 + 22 = 30
Answer: The range is the difference between the largest and the smallest number, in this case the range would be 0
Step-by-step explanation:
Answer:
Answer: 2 ml
Step-by-step explanation:
1 litre is equal to 1,000 ml, and therefore the best solution is 2 ml.