Lisa is seven times as old as her brother. She will be four times as old as her brother in three years. Represent the above situ
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Answer:
The degrees of freedom are given by:
The p value for this case would be given by:
Step-by-step explanation:
Information given
represent the mean height for the sample
represent the sample standard deviation
sample size
represent the value that we want to test
t would represent the statistic
represent the p value for the test
Hypothesis to verify
We want to cehck if the true mean is lees than 25 mph, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
The statistic would be given by:
(1)
Replacing the info given we got:
The degrees of freedom are given by:
The p value for this case would be given by:
Given:
The function is
To find:
The simplified form of A(x) and value of A(x) at x=1.
Solution:
We have,
Putting x=1, we get
Therefore, the simplified form of A(x) is and the value of A(x) at x=1 in 0.