Answer: 
Step-by-step explanation:
Given : An operator of chocolate-packaging machine monitors the net weights of the packaged boxes by periodically weighing random samples of boxes.
The operator wishes to see if a random sample of 50 boxes gives evidence that the mean is different than 453 grams.
i.e. Claim : 
We know that the null hypothesis is a kind of claim which always takes equals sign but alternative hypothesis does not.
Thus , the null and alternative hypotheses for the given situation will be :-
The midpoint of this line segment would be (3.5, 3).
When determining a midpoint, you must take the average of each coordinate. We'll start with the x-coordinates.
(1 + 6)/2 = 3.5
And then the y-coordinates
(3 + 3)/2 = 3
This gives us the point (3.5, 3)
Answer:
The confidence interval for this case would be (216.589, 223.411)
Step-by-step explanation:
Information given
represent the sample mean
population mean
s=12 represent the sample standard deviation
n=50 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 0.95 or 95%, the significance is 
and 
, the critical value for this case is 
And replacing we got:
The confidence interval for this case would be (216.589, 223.411)
Answer: height of the door is x+4
Step-by-step explanation:
Answer:
263.76 feet
Step by step explanation:
Circumference of a circle = pi x d
Given
Diameter d =84 and
Pi = 3.14
Therefore
Circumference = 3.14 x 84
= 263.76 feet
