See photo for solution and mark me as brainliest if you think i helped!
Find the area of this shape
1 answer:
You might be interested in
Answer:
Option 2) Null hypothesis: p = 0.078 , Alternate hypothesis: p > 0.078
Step-by-step explanation:
We are given the following in the question:
According to the National Center of Health Statistics, about 7.8% of all babies born in the U.S. are categorized as low birth weight.
Sample size, n = 1200
p = 7.8% = 0.078
We have to carry a hypothesis test whether national percentage is higher than 7.8% or not.
Thus, we can design the null and the alternate hypothesis
Thus, the correct answer is:
Option 2) Null hypothesis: p = 0.078 , Alternate hypothesis: p > 0.078
Answer:
3
Step-by-step explanation:
We have given ,
and SP =30
We have to find the slope for regression on Y from X
The slope on Y from X is given by
As we have given the value of SP =30 and value of
So slope for regression will be