This would be 16
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They are 6;9;12;15;18 and 21
Answer: Estimated standard error for the sample mean difference would be 1.
Step-by-step explanation:
Since we have given that
Mean of MD = 4.90
So, Sum of difference would be

S = 288
n = 9
We need to find the standard error for the sample mean differences.
Estimated standard error for the sampled mean difference would be

Hence, estimated standard error for the sample mean difference would be 1.
Answer:
35 = a
Step-by-step explanation:
using the law of logarithms
•
x = n ⇔ x = 
= 35 ⇒
35 = a