_________________________________
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
Answer:It would take 6 minutes
Step-by-step explanation:
18-12=6
Answer:c=(-15-9d)/6
Step-by-step explanation:
15=-3(2c+3d)
Open brackets
15=-6c-9d
Add 9d to both sides
15+9d=-6c-9d+9d
15+9d=-6c
Divide both sides by -6
(15+9d)/-6=-6c/-6
-(15+9d)/6=c
c=-(15+9d)/6
c=(-15-9d)/6
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: