Block Y has the smallest acceleration
Answer:
The 95% confidence interval for the population mean is between 25.86 and 28.14.
Step-by-step explanation:
We have that to find our
level, that is the subtraction of 1 by the confidence interval divided by 2. So:

Now, we have to find z in the Ztable as such z has a pvalue of
.
So it is z with a pvalue of
, so 
Now, find the margin of error M as such

In which
is the standard deviation of the population and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 27 - 1.14 = 25.86
The upper end of the interval is the sample mean added to M. So it is 27 + 1.14 = 28.14
The 95% confidence interval for the population mean is between 25.86 and 28.14.
Use substitution to solve the equation:
20-4/4.
4/4=1 so it simplifies to 20-1 which equals 19
Answer:
reference book.
glossary.
lexicon.
onomasticon.
terminology.
vocabulary.
language reference book.
sourcebook.
Step-by-step explanation: