Answer:
There is no convincing evidence at α = 0.10 level that the average vertical jump of students at this school differs from 15 inches.
Step-by-step explanation:
We have to make a hypothesis test to prove the claim that the average vertical jump of students differs from 15 inches.
The null and alternative hypothesis are:
The significance level is 0.10.
The sample mean is 17 and the sample standard deviation is 5.37.
The degrees of freedom are df=(20-1)=19.
The t-statistic is:
The two-sided P-value for t=1.67 is P=0.11132.
This P-value is bigger than the significance level, so the effect is not significant. The null hypothesis can not be rejected.
There is no convincing evidence at α = 0.10 level that the average vertical jump of students at this school differs from 15 inches.
Answer:
Washing Powder
Step-by-step explanation:
Cost less and cleans better.
Answer: 430 rounded so ur answer is 400
Step-by-step explanation:
you do 86 times 5 and you get 430 the you round it to the nearest hundred and you get 400 as ur answer
Simplify it and compare
(7-2-1) z = 8 - 2
4z = 6
so the 3rd
Answer:
A.
B.
Step-by-step explanation:
A.
Where,
Plug in the values to get a polynomial that represents the area of the tool
B. To find area, when x = 4.5 in, plug in the value of x into the equation for the area of the tool.