Answer:
And the 95% confidence interval would be between (69.027;80.793)
Step-by-step explanation:
Information given
represent the sample mean
population mean (variable of interest)
represent the population standard deviation
n=33 represent the sample size
Confidence interval
The confidence interval for the mean is given by the following formula:
(1)
The degrees of freedom are given by:
The Confidence level is 0.99 or 99%, the significance would be 
and 
, the critical value for this case would be 
And replacing we got:
And the 95% confidence interval would be between (69.027;80.793)
I’m not sure what e is in your equation. But I think the answer is t=5000 months. Let me know if you need an explanation
Answer:
1/4
Step-by-step explanation:
Imagine 3 pizzas of equal sizes cut into 10 slices, 4 slices, and 5 slices. Having 1 slice of the second pizza is greater than having 1 of a pizza cut into 10 or 5 slices because they get smaller the more you cut it.
Answer:
Catalina skates a total of 120 feet
Step-by-step explanation:
In order to determine how far she skates, create a right triangle. We know each legs' value with one being 30 and the other 40. Now we can find the hypotenuse by using the Pythagorean Theorem.
a^2 + b^2 = c^2
30^2 + 40^2= c^2
900 + 1600 = c^2
2500 = c^2
50 = c
Now that we have all 3 sides of the right triangle, add them together for the total distance.
30 + 40 + 50 = 120 feet
Answer:
39 cm
Step-by-step explanation:
using the x component go find 12 cm width and follow the line up until it intersects the graph. then follow that point left to estimate the height at that point to estimate 37.5 but more accurately you can use the given equation y=3.25x and plug in your x of 12 to get y=39
