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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.
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