Q5. Talk times of cellphones are described by the normal distribution with mean time 24 hours and variance 2. Calculate the probability that a randomly taken cellphone allows for the talk time between 18 and 25 hours.

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A: The regression equation for the ARIMA model can be simplified as given below

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Q: Since an instant replay system for tennis was introduced at a major tournament, men challenged 1417…

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Q: A random sample of 64 students at a university showed an average age of 25 years and a sample…

A: From the provided information,Confidence level = 98%

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