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

Sinusoidal trigonometrical function, The displacement x meters of a mass fr...

The displacement x meters of a mass from a fixed point about which it is oscillating is given by x=2.3cos?10pt+4.2sin?10pt where t is the time in seconds Express the displaceme

Assingment , application of mathematics in engineering

application of mathematics in engineering

Estimate lowest and highest byte memory, What are the lowest and highest a...

What are the lowest and highest addresses in a 2 20 byte memory in which a four-byte word is the smallest addressable unit?

Dynamics, The acceleration of an oscillating particle is defined by the rel...

The acceleration of an oscillating particle is defined by the relation a = -kx Determine the value of k such that v = 15 in./s when x = 0 and x = 3 in. and v = 0, the speed of the

Harmonic function, Let z 0 = a + ic, z 1 = b + id, z 2 = -id, and z =...

Let z 0 = a + ic, z 1 = b + id, z 2 = -id, and z = [z 0 + z 1 ]. Let z 0 be the apex of the wedge with one ray passing through z 1 and the other passing through z 2 , and

PHOENICS, EXPERT EPERIENCE PHOENICS SOFTWARE

EXPERT EPERIENCE PHOENICS SOFTWARE

Linear programming, A paper mill produces two grades of paper viz., X and Y...

A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i

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

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