# Forty (40) small communities in western Alaska reported an average of 87 casesof larceny per year

Forty (40) small communities in western Alaska reported an average of 87 cases of larceny per year with a population standard deviation 47 cases per
year.
Determine an 65% confidence interval for the population mean annual number
of
reported larceny cases in such communities. Assume the population standard
deviation is known.
Use a z-interval procedure.

## This Post Has 4 Comments

1. Expert says:

$w\geq 14$

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

$2l+2w\geq 40$

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

$2\times 6+2w\geq 40$

now, we can solve for w

$12+2w\geq 40$

subtract both sides by 12

$12+2w-12\geq 40-12$

$2w\geq 28$

divide both sides by 2

and we get

$w\geq 14$

so,

the smallest possible measurement of the width is 14 feet

2. Expert says:

120 seems like the most sensible answer.

step-by-step explanation:

if there is only one topping on all caramel apples and there's 120 of them. then all apples should/will be covered in sprinkles. make sense?

3. Expert says:

not solvable

step-by-step explanation: