Answer:
ok thanks :)
Step-by-step explanation:
Answer: (23.53, 25.47)
Step-by-step explanation:
The confidence interval for population mean(when population standard deviation is unknown) is given by :-

, where
= sample mean
n = sample size.
s = sample standard deviation.
t* = Critical value.
Given :
s= 4.4
Confidence level = 90% =0.090
Significance level = 
Sample size : n= 58
Degree of freedom : df= n-1= 57
Using t-distribution table , the critical value :

Then, the confidence interval will be :-



Hence, a 90% confidence interval for the population mean = (23.53, 25.47)
I think the correct answer from the choices listed above is option B. A parabola is a set of points in a plane that are equidistant from <span>a fixed line called the directrix and a fixed point called the focus. The distance is equal all through out from the directrix to the focus.</span>
Answer:
12 ft^2
Step-by-step explanation:
Justin's garden is 6 ft by 6 ft.
The area of a square is the square of the side.
A = s^2 = (6 ft^2) = 36 ft^2
1/3 of the garden has an area 1/3 of 36 ft^2.
1/3 * 36 ft^2 = 36/3 ft^2 = 12 ft^2
Answer: 12 ft^2