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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 studyHo: p = 0.15Ha: 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.
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
(i) Test for the existence of regression (the F-test). Carefully de ne the null and alternative hypothesis, and explain the result of any R output you obtain. (ii) Which of the
basic properties on the inverse of laplace transform
Define a mapping from the x,y plane to the u,v plane by u = 2x + y, v = -x +2y . If a temperature function is given in the x,y plane by T(x,y) = x+y, what is the value, to 3 de
A cosmetic store offer at RM245 for a package, consisting of a foundation, a compact powder and a lipstick, which is saving of 15% on the cost of buying the units indiviually. If b
An open-loop control system has the following state-space model: (a) Find characteristic equation of the open-loop control system model. (b) What is the characteristic e
if u=x^2-2y^2, v=2x^2-y^2 and x=rcosp ad y=rsinp, find the value of the jacobian d(u,v)/d(r,p)
What are the lowest and highest addresses in a 2 20 byte memory in which a four-byte word is the smallest addressable unit?
(13x7y)0
A new gantry crane for a metal fabrication shop is to be designed. The designer has proposed the following two different configurations: A. Using only truss elements B. Using the
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