Answer:
, option c
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 16 - 1 = 15
95% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 15 degrees of freedom(y-axis) and an level of , thus, we have
The margin of error is of:
In which s is the standard deviation of the sample and n is the size of the sample. For this question, we have . So
Upper bound:
The upper bound is less than the sample mean of 700 added to the margin of error of M. Thus
And the correct answer is given by option c.
Answer:
y = 6
Step-by-step explanation:
14 + 6 = 20
3(6) + 2 = 20
Answer: $48
Step-by-step explanation:
Principal×Rate×Time
$300×2/100×8yrs
Answer:
1/2
Step-by-step explanation:
In the straight line form...
y=mx+b
m is the constant of proportionality or the "K"
Answer:
There are 4 terms
Step-by-step explanation:
A term is a single mathematical expression. Terms can be identified with a plus or minus sign in front of them. Terms can also be multiplied and divided.
So, in this case, the terms are:
-7
12x^4
-5y^8
x