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:
$42 - 19 = 23 - 15 = $8
Step-by-step explanation:
That would be a ray. A mathematical ray has an endpoint but continues forever in a direction, unlike a line which continues in both directions.
The answer is -2.4 -12/5 goes to -2 2/5 or -2.4