Answer:
a) Null hypothesis:
Alternative hypothesis:
b)
The degrees of freedom are given by:
The p value for this case taking in count the alternative hypothesis would be:
Step-by-step explanation:
Information given
represent the sample mean for the amount spent each shopper
represent the sample standard deviation
sample size
represent the value to verify
t would represent the statistic
represent the p value f
Part a
We want to verify if the shoppers participating in the loyalty program spent more on average than typical shoppers, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
The statistic for this case would be given by:
(1)
Replacing the info given we got:
The degrees of freedom are given by:
The p value for this case taking in count the alternative hypothesis would be:
Answer:
Wow Ashley I see you keep looking for the answers.
Step-by-step explanation:
This is the second time I have seen you looking for the answers on the internet, I am now thinking about giving you a zero for this week's homework. Please refrain from copying because I do not want to give you a bad score.
Answer:
1/5 (x-3)
Step-by-step explanation:
1/5x -3/5
1/5 (x-3)
It’s positive. When you multiply two negatives together their signs cancel out. So your answer would be 28.
Answer:
Step-by-step explanation:
In order to find the final radii of the sphere, we need to calculate the volume, knowing that volumes are additive:
Now that we know the radii of the new sphere, we can calculate the surface area: