Answer:
I dont know if this is correct but try it! the answer is 30cm
Step-by-step explanation:
do 10x3
Answer:
(1238.845 ;1285.376)
Step-by-step explanation:
Conditions for constructing a confidence interval :
Data must be random
Distribution should be normal and independent ;
Based on the conditions above ; data meets initial conditions ;
C. I = sample mean ± margin of error
Given the data :
1241 1210 1267 1314 1211 1299 1246 1280 1291
Mean, xbar = Σx / n = 11359 / 9 = 1262.11
The standard deviation, s = [√Σ(x - xbar)²/n - 1]
Using a calculator ; s = 37.525
The confidence interval :
C.I = xbar ± [Tcritical * s/√n]
Tcritical(0.10 ; df = n - 1 = 9 - 1 = 8)
Tcritical at 90% = 1.860
C. I = 1262.11 ± [1.860 * 37.525/√9]
C.I = 1262.11 ± 23.266
(1238.845 ;1285.376)
± 23.266
The margin of error :
[Tcritical * s/√n]
[1.860 * 37.525/√9]
C.I = ± 23.266
Answer: The width of the library is 22feet.
Perimeter = length+ length+ width+ width
The problem is telling us that the perimeter is 116 and the length is 36. So let’s plug it in and solve for width which equal w
w= width
Step 1: 116= 36+ 36+ w+w
Step 2: 116=72+ 2w
Step 3: 116= 72+2w
-72 -72
Step 4: 44=2w
Step 5: divide 2w on both sides ( 44 divided by 2)
Step 6: w= 22
Answer:
Mid point is(1,-6)
Explanation: Add the Xs together and divide by 2. Do the same for the Ys.
The correct answer for the question that is being presented above is this one: "b.56.45%057.55%." The mean percentage of a population of people eating out at least once a week is 57%, with a standard deviation of 3.5%. Assume that a sample size of 40 <span>people was surveyed from the population an infinite number of times.</span>
