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

Hypothesis testing, A scientist calculates the temperature of melting plati...

A scientist calculates the temperature of melting platinum using a new type of thermometer. The temperature of the metal is called to be exactly 1768.3 centigrade. The measurements

Electrical, The P.D. at the feeder end of a two wire d.c. distributor is 6...

The P.D. at the feeder end of a two wire d.c. distributor is 600 volts. Two loads are connected to the distributor at distances of 600 feet and 1000 feet from the feeder end and t

Provide a derivation, This is a pen and paper exercise, you are expected to...

This is a pen and paper exercise, you are expected to provide a detailed derivation. Follow the procedure outlined in the lectures for construction of a simple averaging by thr

Statistics, what are median,mode,aveage,mode

what are median,mode,aveage,mode

Process of repeated convolution, If x and y are two independent random vari...

If x and y are two independent random variables then their joint density function is given by The density function f z of the sum  of these two variables is given by the c

Find the equilibrium points, Find the equilibrium points (real and imaginar...

Find the equilibrium points (real and imaginary parts, to 3 decimal places) if unit positive line charges are placed at a+ic, b+id, and -3-2i. Designate one of these numbers as "m

Linear programming applications to industry, I need a research paper. The c...

I need a research paper. The concept is to develop a new linear programming was not introduced in the art literature before then apply the LP to spcific industry

Galerkin Mrthod, Solve differential equation of Y" = 0 using the Galerkin m...

Solve differential equation of Y" = 0 using the Galerkin method and considering 0 = x= 3 given that: h = 0cm when x = 0m and h = 10cm when x = 3m.

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