Sylvie finds the solution to the system of equations by graphing. y = x + 1 and y = x – 1 Which graph shows the solution to Sylv
2 answers:
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Answer:
Check the explanation
Step-by-step explanation:
Let and
be sample means of white and Jesse denotes are two random variables.
Given that both samples are having normally distributed.
Assume having with mean
and
having mean
Also we have given the variance is constant
A)
We can test hypothesis as
For this problem
Test statistic is
Where
We have given all information for samples
By calculations we get
s=2.41
T=2.52
Here test statistic is having t-distribution with df=(10+7-2)=15
So p-value is P(t15>2.52)=0.012
Here significance level is 0.05
Since p-value is <0.05 we are rejecting null hypothesis at 95% confidence.
We can conclude that White has significant higher mean than Jesse. This claim we can made at 95% confidence.
Answer:
Option D.The ratio of the radius of a circle to its circumference
Step-by-step explanation:
<em>Verify each statement</em>
A) The ratio of the circumference of a circle to its diameter
The statement is True
Because
so
B) Approximated to be 3.14
The statement is True
Because
C) Approximated to be 22/7
The statement is True
Because
D) The ratio of the radius of a circle to its circumference
The statement is not True
Because