The decimal equivalent to 5/4 is 1.25.
Answer:
a=8,4
B=16,12
C=8,16
Step-by-step explanation:
Answer:
a) Null hypothesis:
Alternative hypothesis:
b)
The degrees of freedom are given by:
![df = n-1 = 80-1=79](https://tex.z-dn.net/?f=%20df%20%3D%20n-1%20%3D%2080-1%3D79)
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:
![df = n-1 = 80-1=79](https://tex.z-dn.net/?f=%20df%20%3D%20n-1%20%3D%2080-1%3D79)
The p value for this case taking in count the alternative hypothesis would be:
Y=4 or -4
Explanation: trust me bro
Using it's concept, your percentage for the month was of 94.12%.
<h3>What is a percentage?</h3>
The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:
P = a/b x 100%
In this problem, your goal was of 85, with a grade of 80, hence the percentage is:
P = 80/85 x 100% = 94.12%.
Hence, your percentage for the month was of 94.12%.
More can be learned about percentages at brainly.com/question/10491646
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