Answer:
ok
Step-by-step explanation:
Hi there!
(3/2)2+4<span>÷2*3 = 9
Hope this helps! :)</span>
The 3rd one because of the laws and newton’s ways
Answer:
A. T > 2.539
Step-by-step explanation:
We have a hypothesis test of the mean, with unknown population standard deviation.
The hypothesis are:

From the hypothesis we can see that the test is right-tailed, so the critical value of t should be a positive value.
The degrees of freedom can be calculated as:

The significance level is 0.01, so the critical value tc should be the one that satisfies:

Looking up in a t-table, for 19 degrees of freedom, this critical value is tc=2.539.
.022 would be 22 hundredths as a decimal