The number of injuries per month at a certain factory has a Poisson distribution. In the past the mean was 2.1 injuries per month. New safety procedures are put in place and the management wishes to use the next 3 months to test, at the 2% significance level, whether there are now fewer injuries than before, on average.
a) Find the critical region for the test.
b) Find the probability of a Type I error.
c) During the next 3 months there are a total of 3 injuries. Carry out the test.
d) Assuming that the mean remains 2.1, calculate an estimate of the probability that there will be fewer than 20 injuries during the next 12 months.
پاسخ تشریحی :
تحلیل ویدئویی تست
تحلیل ویدئویی برای این تست ثبت نشده است!
محتواهای آموزشی مشابه
فایل های پاورپوینت، ویدئو، صوتی، متنی و ...
پرسش و پاسخ های مشابه
سوال کنید یا به سوالات دیگران پاسخ دهید ...