Please help, step by step, I need to show the work, I just don’t know how to do it
1 answer:
Answer:
B
Step-by-step explanation:
The volume (V) of a rectangular prism is
V = lbh
where l is the length, b the width and h the height
We are looking for 3 values that multiply together to give 10
Considering each of the options
A
100 × ×
= 25 ≠ 10
B
10 × × 2 = 10
C
5 × 2 × 2
= 31.25 ≠ 10
D
10 × 10 × = 50 ≠ 10
B is the only possible dimensions for the prism
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Just to check this is correct:
Answer:
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Answer:
The p value for this case would be:
The p value is higher than the significance level so then we can conclude that we can FAIL to reject the null hypothesis and then the true mean for group A is not significantly higher than the mean for B
Step-by-step explanation:
Information given
represent the mean for sample A
represent the mean for sample B
represent the sample standard deviation for A
represent the sample standard deviation for B
sample size for the group A
sample size for the group B
Significance level provided
t would represent the statistic
Hypothesis to test
We want to verify if the student who graduates from college A has taken more math classes, on the average, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
The statistic is given by:
(1)
And the degrees of freedom are given by
Replacing we got:
The p value for this case would be:
The p value is higher than the significance level so then we can conclude that we can FAIL to reject the null hypothesis and then the true mean for group A is not significantly higher than the mean for B