Answer:
Correct option: b 39.
Step-by-step explanation:
A one-sample (or one mean) t-test is applied to test whether the population-parameter is significantly different from some hypothetical value.
The degrees of freedom of the <em>t</em>-test is:
df = n - 1
It is provided that the sample size is, <em>n</em> = 40.
Compute the degrees of freedom as follows:
df = n - 1
= 40 - 1
= 39
Thus, the correct option is b.
Answer:
24
Step-by-step explanation:
Answer:
A 170+179=349 B 183+167=350 E 165+175=340
Step-by-step explanation:
Answer:
Y=10x+25
Step-by-step explanation:
Hey so let’s take the number of hours we go boating as “x” and the TOTAL cost of this whole trip as “y”.
So obviously y would equal everything else so we can write
Y=
Next, it says we rent a canoe for $10 an hour. That means we would have to multiply 10 and x to find the cost of the rent.
So
Y=10x
Finally, it says we paid a registration fee of $25. This 25 is not affected by the number of hours or anything else. It is a fixed amount so we can represent it as
Y=10x+25
Hope this helps!
