? MOVing to another question will save this response. Question 10 of 14 Question

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? MOVing to another question will save this response. Question 10 of 14 Question 10 3 pointsSave Answer A health researcher is studying patient anxiety levels when donating blood. The sample data set has a mean of 72 and a standard deviation of 8 She wants to know what percentage of people fall between the scores of 82 and 94. Answer the following questions: A. What z-score corresponds to the score of 822 B. what z-score-corresponds to the score of 947 C. What percentage of people fall between the scores of 82 and 94? Moving to another question will save this response Question 10 of 14

Explanation / Answer

hee as we know that z score =(X-mean)/std deviaiton

a)

z score =(82-72)/8=1.25

b)

z score =(94-72)/8=2.75

c)

P(percentage between 82 and 94)=P(82<X<94)=P(1.25<Z<2.75)=(99.70%-89.44%)=10.26%

( please try 10.27 % if above comes wrong due to rounding error)

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