Answer:
The degrees of freedom are given by:
![df = n-1= 50-1=49](https://tex.z-dn.net/?f=%20df%20%3D%20n-1%3D%2050-1%3D49)
And the p value is given by:
Since the p value is very low compared to the significance level provided we have enough evidence to conclude that the true deviation is higher than 0.45
Step-by-step explanation:
Information given
represent the confidence level
represent the sample variance obtained
represent the value that we want to test
System of hypothesis
On this case we want to check if the true deviation is higher than 0.45, so then we can create the following system of hypothesis:
Null Hypothesis:
Alternative hypothesis:
The statistic for this case is given by:
Replacing we got
The degrees of freedom are given by:
![df = n-1= 50-1=49](https://tex.z-dn.net/?f=%20df%20%3D%20n-1%3D%2050-1%3D49)
And the p value is given by:
Since the p value is very low compared to the significance level provided we have enough evidence to conclude that the true deviation is higher than 0.45
Answer:
2
Step-by-step explanation:
the x and y are being multiplied by 2 e.g. 1 × 2 is 2 and 2 × 2 is 4 so the constant is 2
Answer: i just did the math and i'm fairly certain this is the answer
slower 19 mph
faster 20 mph
Step-by-step explanation:
you take the first number 117 and divide that by 3 hours which will give you your speed or mph
Answer: x^2+4
Step-by-step explanation:
1/2 of the books are science books because once you convert the other two books you get 2/6 +1/6= 1/2 so the science books will be the other half.