Answer:
The value of P-value is 0.0472.
Step-by-step explanation:
We are given that you take a simple random sample of 12 apartments in town A and calculate the average price of these apartments. You repeat this for 15 apartments in town B.
Let
= <u><em>true average price of apartments in town A</em></u>
= <u><em>true average price of apartments in town B</em></u>
So, Null Hypothesis,
:
Alternate Hypothesis,
:
The test statistics that have been used here is <u>two-sample t-test statistics</u>, i.e;
The test statistics given to us is 2.1
Now, the P-value of the test statistics is given by the following formula;
P-value = P(
> 2.1)
= P(
> 2.1) = 0.0236
In two-tailed test, P-value is calculated as = 2
0.0236 = <u>0.0472</u>
Hence, the value of the p-value is 0.0472.
Answer:
4
Step-by-step explanation:
Answer:
x = 7.5 y = 1.5
Step-by-step explanation:
3x + 5y = 30
-5y + 3x = 15
3x + 5y = 30
<u>3x - 5y = 15</u>
6x = 45
x = 45/6
x = 7.5
3(7.5) + 5y = 30
22.5 + 5y = 30
5y = 7.5
y = 7.5/5
y = 1.5
Check:
3(7.5) + 5(1.5) = 30
-5(1.5) + 3(7.5) = 15
Answer:
the answer to this is 7.
Step-by-step explanation:
7+3=10.
Answer:
I NEED THIS ANSWER!
Step-by-step explanation: