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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.
In closed system 0.3kg of gas at 373K is expanded isothermally and reversibly from 1 mpa pressure to 200 kp. Given that cv= 718 j/kg k and R= 287 j/kgk.
a.) Give a short sequence of machine instructions for the task " Add the contents of memory location A to those of memory location B, and place the answer in location C ". You have
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in the diagram shown below, the fuel tank which is of uniform cross section and of length 8m is position so that the rear of the tank is 19 metres from the datum. the mass of the f
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
What is the characteristics of divison
A company's full profit per unit production is given by the function y = -5x 2 +17x-12 where x is the number of items produced (in hundreds) and the y is the profit per unit (in
i have a wav file which consists of a number of hammer impact noises. i want to break up each impact into and individual wav file. i want to ignore the first 40ms of the impact and
for what values of (a,b) does the point P (0,a,b) lie on the line through Q (1,-1,4) and R (2,3,5)?
#how do you estimate the sum a limit using intrgral test
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