Please help me with this question!
1 answer:
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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:
Step-by-step explanation:
Let the equation of line is , where
is the slope of the line.
It passes through .
(<em>Slope of the line</em> joining )
Hence slope of the given line
Equation of line is:
The line passes through
Check if is on the line
Hence line passes through .
Check if is on the line
Hence line passes through .