Pulse rate of women are normally with a mean of 77.5 beats per minute and a stan

Question

Pulse rate of women are normally with a mean of 77.5 beats per minute and a standard deviation per minute. Answer the following questions. What are the values of the mean and standard deviation after converting all pulse rates of women to z scores using z = (x - mu)/sigma mu = sigma = The original pulse rates are measure with units of "beats per minute" What are the units of corresponding z scores Choose the correct choice below The 2 scores are measured with units of "minutes per beat." The z scores are measured with units of "beats ."The z scores are measured with units of "beats per minute." The z scores are numbers without units of measurement.

Explanation / Answer

Here we have the mean and standard deviation and we have to find the nw after converting into new z score.Once any normal distribution is converted to the standard normal by subtracting the mean and dividing the standard deviation, The new
distribution is Standard Normal with mean 0 and standard deviation 1.

hence mean will be 0 and standard deviation will be 1

b) according to the formula mean and standard deviation both have units beats per minute which will be cancel out acoording to the z formula are both are in devision

hence the z score are the numbers without any units of measurement .

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