Lower than average, Mathematics

Assignment Help:

A local police precinct has seen a recent enhance in the number of complaints filed regarding how officers are interacting with the public. Before addressing the issue, the commander needs to know if the issue is wide spread all through the precinct or if it is isolated to the specific complainants. To explain this, the commander has the community relations unit randomly call houses all through the precinct and ask how fairly they feel the police treats the public. The commander then compares the information gathered by the random sample to the called parameters for the entire city to explain if his precinct's score is significantly lower than average.

a)  Would the commander conduct a 1-tailed or 2-tailed hypothesis test? Describe why.

b)  Use the information below to conduct a z-test using p=.01 as your alpha level. Make sure you complete all 5 steps and show your work/answers for every step.

 

Sample                        Population

Mean = 2.64               Mean = 2.72

SD = 0.56                    SD = 0.31

n = 86

c)  Measure a 99% confidence interval for the above sample.

 


Related Discussions:- Lower than average

Expected opportunity loss or eol method, Expected opportunity loss or EOL m...

Expected opportunity loss or EOL method EOL method is aimed at minimizing the expected opportunity loss or OEL. The decision maker chooses the strategy along with the minimum e

Factoring out the greatest common factor, Factoring out the greatest common...

Factoring out the greatest common factor of following polynomials.                    8x 4 - 4 x 3 + 10 x 2  Solution Primary we will notice that we can factor out a

What is the distance this car will travel in (3x - 8) hours, A car travels ...

A car travels at a rate of (4x2 - 2). What is the distance this car will travel in (3x - 8) hours? Use the formula distance = rate × time. Through substitution, distance = (4x2

Powerball odds., I need to know how to get the power ball odds. the first o...

I need to know how to get the power ball odds. the first one 5 out of 59 plus 1 out of 35 I got .I did combination formula and it came out right. how do you get 5 out 0f 59 and get

Definition of a function, A function is a relation for which each of the va...

A function is a relation for which each of the value from the set the first components of the ordered pairs is related with exactly one value from the set of second components of t

General solution to a differential equation, The general solution to a diff...

The general solution to a differential equation is the most common form which the solution can take and does not take any initial conditions in account. Illustration 5: y(t) =

Complex fractions, A small airplane used 5and2over3 gallons of fuel to fly ...

A small airplane used 5and2over3 gallons of fuel to fly a 2 hour trip.how many gallons were used each hour

Derivative for the trig function, Derivative for the trig function: We'll ...

Derivative for the trig function: We'll begin with finding the derivative of the sine function. To do this we will have to utilize the definition of the derivative. It's been wher

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd