Mean and standard deviation , Mathematics

Assignment Help:

A professor is interested in decisive if attending college influences the level at which an individual cooperates with the police. The professor is not sure  if attending college will teach respect for authority and therefore  increase level of cooperation or if college will teach independent thinking and therefore  lead to deceased level of cooperation. To address this question, the professor gathers information from the students in an undergraduate course and measures their propensity for cooperating with the police (higher number means higher level of cooperation) and compares it to the called mean and standard deviation of the general population.

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

b)  Use the information below to conduct a z-test using p=.05 as your alpha level. Make sure you complete all 5 steps and show your work/answers for every  step.

Sample         Population:
Mean = 3.13        Mean = 3.02
SD = 0.53         SD = 0.54
n = 86

c)  Calculate a 95% confidence interval for the above sample.

 


Related Discussions:- Mean and standard deviation

Find the number., There is a number. If the sum of digits is 14, and if 29 ...

There is a number. If the sum of digits is 14, and if 29 is subtracted from the number, the digits become equal. Find the number.

Xy Algebra, Find the values of x and y

Find the values of x and y

What is the minimum number of students, Question 1: What is the minimum...

Question 1: What is the minimum number of students each of whom comes from one of the 50 different states, enrolled in a university to guarantee that there are at least 100 who

Trigonometry, how to work out consumer arithmetic?

how to work out consumer arithmetic?

Levels of significance - rejection and acceptance regions, Levels of signif...

Levels of significance A level of significance is a probability value which is utilized when conducting tests of hypothesis. A level of significance is mostly the probability

Find out if the sets of vectors are parallel or not, Determine or find out ...

Determine or find out if the sets of vectors are parallel or not. (a) a → = (2,-4,1), b = (-6, 12 , -3) (b) a → = (4,10), b = (2,9) Solution (a) These two vectors

Find the solution to initial value problem, Illustration:   Find the soluti...

Illustration:   Find the solution to the subsequent IVP. ty' + 2y = t 2 - t + 1,      y(1) = ½ Solution : Initially divide via the t to find the differential equation in

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