Answer:
The degrees of freedom are given by:
The p value for this case would be given by:
If we use a significance level lower than 9% we have enough evidence to FAIL to reject the null hypothesis that the true mean is greater or equal than 3 but if we use a significance level higher than 9% the conclusion is oppossite we reject the null hypothesis
Step-by-step explanation:
Information given
represent the sample mean
represent the standard deviation
sample size
represent the value to verify
represent the significance level
t would represent the statistic (variable of interest)
represent the p value
Hypothesis to verify
We want to check if the true mean for this case is less than 3 minutes, the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
The statistic for this case is given by:
(1)
Replacing we got:
The degrees of freedom are given by:
The p value for this case would be given by:
If we use a significance level lower than 9% we have enough evidence to FAIL to reject the null hypothesis that the true mean is greater or equal than 3 but if we use a significance level higher than 9% the conclusion is oppossite we reject the null hypothesis
The question is incomplete.
Area= Length*width
38.25m^2=Length*4.5m
38.25m^2/4.5m=Length=8.5m
Any questions feel free to ask. Thank you
Answer:
$2.40
Step-by-step explanation:
We know that the sales tax is 8% , we also know that we want to buy two t shirts that cost $15.00 each.
So first, look at what we are purchasing, two t-shirts costing 15.00 dollars each.
Since we are buying two, multiply $15 by 2,
==> $30.00 dollars
And since the sales tax is 8%, to find how much we will pay will mean to multiply the amount by the percent,
30 * 8%
==> $2.40 dollars
You will pay $2.40 dollars in tax