Answer:
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Step-by-step explanation:
??????
Answer:
We see that the p value is lower than the significance level given of 0.01 so then we can conclude that the true mean for the nicotine content is significantly higher than 40 mg
Step-by-step explanation:
Information provided
represent the average nicotine content
represent the sample standard deviation
sample size
represent the value to check
represent the significance level for the hypothesis test.
t would represent the statistic
represent the p value for the test
System of hypothesis
We want to verify if the nicotine content of the cigarettes exceeds 40 mg , the system of hypothesis are:
Null hypothesis:
Alternative hypothesis:
The statistic for this case would be:
(1)
And replcing we got:
The degrees of freedom are:
The p value would be:
We see that the p value is lower than the significance level given of 0.01 so then we can conclude that the true mean for the nicotine content is significantly higher than 40 mg
Answer:
28cm
Step-by-step explanation:
Hi!
Let's find the area of the rectangle (we can form) and then tack on the area of the triangles.
We have 4 * 3 = 12. So the first area is 12.
Now, the triangles. We see that they will have base 4, and leg 2.
Using the Pythagorean Theorem:
4² + 2² = 20. √20 = 2√5. That won't really matter however, because we will multiply 4 by 2 to find the area.
4 * 2 = 8
The same will happen on the other side:
4 * 2 = 8 (note that we could've created a rectangle out of the triangles, but that would give us 16 too.)
8 + 8 = 16.
16 + 12 = 28
Thus, the area is 28 cm.
Hope this helps!
2/8=1/4 so 1/4 of 4000 is 1500. 1500/2=750 people. 1500+750=2250. 2250/16000=0.1406 Multiply 0.1406 by 100 and you get 14.06 and then round.
You’re answer is 14.1% of the applicants decided to attend the University of San Antonio
