A high school counselor, Engineering Mathematics

Assignment Help:

A high school counselor needs to specify whether the teenage pregnancy rate at her school is disimilar from the rate nationwide. She knows that the rate nationwide is 15 %. She randomly selects 80 female students from her high school.  She serach that 9 out of 80 students are either pregnant now or have been pregnant lastly.

a.    What statistical test should be used to examine the data? The z test should be used to examine the data.

b.    Identify H0 and Ha for this study
Ho: p = 0.15
Ha: p not equal 0.15

c.    Conduct the appropriate analysis
z= (phat - p) /sqrt(p*(1-p)/N)
z=(9/80 - 0.15)/sqrt(0.15*0.85/80)
z= -0.933933

d.    Should H0 be devorted? What should the researcher conclude? The Ho can not be rejected or the null hypothesis is not rejected.


Related Discussions:- A high school counselor

The circular function and eqautions, Question 1 Find all solutions of t...

Question 1 Find all solutions of the following equations in the interval [0, 2π) (a) sin(2x) = √2 cos(x). (b) 2 cos 2 (x) + 3 sin(x) = 3. 2. Sketch the graph of the ci

Assingment , application of mathematics in engineering

application of mathematics in engineering

Bad Illustration, There is an illustration of a diesel engine sixteen cylin...

There is an illustration of a diesel engine sixteen cylinder that is supposed to be four-cycle, however GM never made engines of that size that were not two-cycle. The four valves

Two distinct case, A) Prove the following theorem by considering two distin...

A) Prove the following theorem by considering two distinct cases. For any integer n, n 2 + n is even. B)  If x = r 2  - s 2 and y = 2rs for any integers r and s, then x 2 +

Calculate the sequence from aitken’s method, Values from the iteration x = ...

Values from the iteration x = cos(x) are: x 0 = 0.8, x 1 = 0.696707, x 2 = 0.766959, x 3 = 0.720024, x 4 = 0.751790, x 5 = 0.730468. a) Calculate the sequence {y n } fr

Does the jury selection system appear, In the case of Castenedav . Partid...

In the case of Castenedav . Partida , it was found that during a period of 11 years in Hilda County, Texas, 870 people were selected for grand jury duty, and 39% of them were Ame

Modeling, As an engineering student, the ministry of energy and minerals ha...

As an engineering student, the ministry of energy and minerals has tasked you to help them model equation(s) that can estimate the amount of crude oil in a reservoir. The governmen

Dynamics, A stone weighing 50 newton is tied to one end of a cord 0.90 mete...

A stone weighing 50 newton is tied to one end of a cord 0.90 meter long. the stone is then whirled in a vertical circle. if the breaking strength of the cord in tension is 60 newto

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