just answer the following mcqs:

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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just answer the following mcqs:

 

"For equal varainces cases, if N1 is sample size of sample 1 and N2 is sample
N1+N2-2
of smaple 2. then total DF is equal ror
O N1+N2-1
O N1-N2
N1+N2
Transcribed Image Text:"For equal varainces cases, if N1 is sample size of sample 1 and N2 is sample N1+N2-2 of smaple 2. then total DF is equal ror O N1+N2-1 O N1-N2 N1+N2
"For a population mean of 35, a sample was taken with a mean value of 40 and sample size equal to 30. The population standard devation is 20. What s
probability of average value greater than 407
0.9131
0.718
0.0869
None of the above
Transcribed Image Text:"For a population mean of 35, a sample was taken with a mean value of 40 and sample size equal to 30. The population standard devation is 20. What s probability of average value greater than 407 0.9131 0.718 0.0869 None of the above
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