A confidence interval that will capture the true population mean with 95% confidence. The value is ( 23.6459 , 24.8293 ) .
What is population mean?
A population in statistics is a group of comparable objects or occurrences that are relevant to a particular topic or experiment. A statistical population can be a collection of real things or a hypothetical, possibly limitless collection of objects derived from experience.
Data: 18
for given data
as population variance is unknown so we used sample variance
Now
hence 95 % of population mean is
As n=101 which is large so critical value is 1.98397
To learn more about statistics visit:brainly.com/question/29093686
#SPJ4
It’s b
Z+23=41
Because you don’t know what z is
What you do is set up the expression and then substitute:
So your final expression is
.
Answer:
Step 1: x^2 + 8x + 15 + 1 = 0 + 1
Step 2: x^2 + 8x + 16 = 1
Step 3: (x + 4)^2 = 1
Step-by-step explanation:
You want the constant on the left to be the square of half the x-coefficient.
(8/2)^2 = 4^2 = 16
You already have a constant that is 15, so you need to add 1 to both sides of the equation. That is the <em>Step 1</em> shown here. <em>Step 2</em> is simplifying the result of <em>Step 1</em>. <em>Step 3</em> is rewriting the trinomial as the square of a binomial.
5280 feet per 1 mile
40 times 5280=211200
211200 feet per hour