Mathematics, 12.08.2020 07:01 bananaslada

B. false 3. A certain group of students study two and half hours per week with a standard
deviation of half an hour. If a random sample of 25 students is taken, what is the
probability they studied less than 2.25 hours. Let X = the number of hours a
student studied.
a. (1 pt) Provide the formula for calculating the Z-score
b. (2 pts - Show your work) Calculate the Z-score
C. (1 pt) State the probability mathematically.
d. (1 pt) State the Excel function you will use to calculate the probability.
e. (2 pts) Use your calculated z-score to find the probability,

Answers: 2

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B. false 3. A certain group of students study two and half hours per week with a standard
devi...