The number of the emails that a scientist receives, follows a Poisson distribution with an average rate of λ = 20 emails per day (all the 24 hours). (α) What is the probability to receive exactly 21 emails today? (β) How many emails is expected to receive in a working week long (5 days)? (γ) Today she gives classes between 13:00-15:00. give your answer correct to three decimal places

The number of the emails that a scientist receives, follows a Poisson distribution with an average rate of λ = 20 emails per day (all the 24 hours). (α) What is the probability to receive exactly 21 emails today? (β) How many emails is expected to receive in a working week long (5 days)? (γ) Today she gives classes between 13:00-15:00. give your answer correct to three decimal places

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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If you assume the distribution of X is N(μ, σ2) with an H0: μ = 7.5 and n=10 with a 2-sided alternate hypothesis. How would you find the test statistic and critical region for α = 0.05?