In terms of significant figures, when doing division and/or multiplication, the answer should reflect the number in the problem
1 answer:
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Answer:
The degrees of freedom are given by
The p value would be given by this probability:
Since the p value is lower than the significance level provided of 0.01 we have enough evidence to reject the null hypothesis and we can conclude that the true mean is significantly lower than 9.02 cm^3
Step-by-step explanation:
Information given
represent the sample mean
represent the sample deviation
sample size
represent the value to verify
represent the significance level for the hypothesis test.
t would represent the statistic
represent the p value
System of hypothesis to check
We want to check if the true mean is less than the normal value of 9.02 cm^3, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
The statistic for this case is given by:
(1)
Replacing the info given we got:
The degrees of freedom are given by
The p value would be given by this probability:
Since the p value is lower than the significance level provided of 0.01 we have enough evidence to reject the null hypothesis and we can conclude that the true mean is significantly lower than 9.02 cm^3
Answer:
Equation of graphed line is
Step-by-step explanation:
We need to write the equation of the graphed line.
The equation will be in slope intercept form where m is slope and b is y-intercept
We need to find slope and y-intercept.
Finding slope
Slope can be found using formula:
We will use points (0,-3) and (3,2)
Looking at the graph, we get
Putting values in graph and finding slope
So, we get slope
Finding y-intercept
y-intercept can be found when x is zero.
So, looking at graph, when x =0, y=-3
So, y-intercept is -3
Equation of Line
So, equation of line having slope and y-intercept b = -3
So, Equation of graphed line is