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Problem Set HQuestion 1Pulse rates of women are normally distributed with a mean of 77.5 beats per minute and a standard deviation of 11.6 beats per minute. Answer the following questions.Part A – What are the values of the mean and standard deviation after converting all pulse rates of women to z scores using z=(x−μ)σ?Part B – The original pulse rates are measure with units of "beats per minute". What are the units of the corresponding z scores? Choose the correct choice below.Question 2What is the difference between a standard normal distribution and a nonstandard normal distribution?Choose the correct answer below.Question 3Computers are commonly used to randomly generate digits of telephone numbers to be called when conducting a survey. Can a nonstandard normal distribution be used to find the probability that when one digit is randomly generated, it is less than 3? Why or why not? What is the probability of getting a digit less than 3?(Roundto four decimal places asneeded.)}