4. A garment manufacturing company in Downtown Los Angeles has 550 hourly employees with an average...

   

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4. A garment manufacturing company in Downtown Los Angeles has 550 hourly employees with an average age of 25.5 years, and a standard deviation of 4.5 years. If a random sample of 50 hourly employees is taken, what is the probability that the sample will have an average age of more than 25 years old? (Hint: Uses Norm.Dist) 5. Forty-Six percent of a population possesses a particular characteristic. Random samples are taken from this population. Determine the probability for: sample size = 60 and the sample proportion is between 41 and .53 (Hint: Use Norm.S.Dist) Complete via Excel. Review your Excel Guide prior to Calculation, should you have any doubts. Excel Tips: Go to Formulas/More Functions/Statistical/Select one for the options below: NORM.DIST gives the probability that a number falls at or below a given value of a normal distribution. NORM.DIST(x, mean, standard deviation ,cumulative) NORM.S.DIST function translates standard deviations (2) into cumulative probabilities. (Z Score, cumulative) 4. A garment manufacturing company in Downtown Los Angeles has 550 hourly employees with an average age of 25.5 years, and a standard deviation of 4.5 years. If a random sample of 50 hourly employees is taken, what is the probability that the sample will have an average age of more than 25 years old? (Hint: Uses Norm.Dist) 5. Forty-Six percent of a population possesses a particular characteristic. Random samples are taken from this population. Determine the probability for: sample size = 60 and the sample proportion is between 41 and .53 (Hint: Use Norm.S.Dist) Complete via Excel. Review your Excel Guide prior to Calculation, should you have any doubts. Excel Tips: Go to Formulas/More Functions/Statistical/Select one for the options below: NORM.DIST gives the probability that a number falls at or below a given value of a normal distribution. NORM.DIST(x, mean, standard deviation ,cumulative) NORM.S.DIST function translates standard deviations (2) into cumulative probabilities. (Z Score, cumulative)

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