Ratio 4:7
If there are 8 red then number of yellow, y = 8 ×7/4=14
4ov [2.718282]r =2.174625orv
49 * 3 = 147
147 - 55 - 28 = 64
They scored 64 points the third game
To check the answer do 55 + 64 + 28, which equals 147, and divide that by 3, which equals 49.
Answer:
Step-by-step explanation:
Information given
n=370 represent the sample selected
estimated proportion of readers owned a laptop
is the value that we want to test
z would represent the statistic
represent the p value
Creating the hypothesis
We need to conduct a hypothesis in order to test if the true proportion of readers owned a laptop is different from 0.45, the system of hypothesis are:
Null hypothesis:
Alternative hypothesis:
The statistic is:
(1)
Replacing we got:
Calculating the p value
We have a bilateral test so then the p value would be:
The two lines intersect at point B, hope this helps.