Mathematics, 13.12.2019 04:31, yedida
Anewspaper published an article about a study in which researchers subjected laboratory gloves to stress. among 225 vinyl? gloves, 60? % leaked viruses. among 225 latex? gloves, 9? % leaked viruses. using the accompanying display of the technology? results, and using a 0.05 significance? level, test the claim that vinyl gloves have a greater virus leak rate than latex gloves. let vinyl gloves be population 1.
technology results: : :
pooled? proportion: 0.35
test? statistic, z: 11.2921
critical? z: 1.6449
? p-value: 0.
90? % confidence? interval:
0.4441890 < p1? p2 < 0.5691444
a) what are the null and alternative hypotheses?
b) identify the test statistic
c) identify the p-value
d) what is the conclusion for the test?
Answers: 1
Mathematics, 21.06.2019 20:30, janeou17xn
Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?
Answers: 1
Mathematics, 21.06.2019 20:40, genyjoannerubiera
Sh what is the value of x? ox= 2.25 x = 11.25 ox= x = 22 1 (2x + 10) seo - (6x + 1) -- nie
Answers: 3
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