Questions from Applied Statistics

Q: An article in Electronic Journal of Applied Statistical Analysis [“Survival Analysis

An article in Electronic Journal of Applied Statistical Analysis [“Survival Analysis of Dialysis Patients Under Parametric and Non-Parametric Approaches” (2012, Vol. 5(2), pp. 271–288)] modeled the su...

Q: An article in IEEE Transactions on Dielectrics and Electrical Insulation [“Statistical

An article in IEEE Transactions on Dielectrics and Electrical Insulation [“Statistical Analysis of the AC Breakdown Voltages of Ester Based Transformer Oils” (2008, Vol. 15(4), pp. 1044–1050)] used We...

Q: An article in Financial Markets Institutions and Instruments [“Pricing Reinsurance Contracts

An article in Financial Markets Institutions and Instruments [“Pricing Reinsurance Contracts on FDIC Losses” (2008, Vol. 17(3), pp. 225–247)] modeled average annual losses (in billions of dollars) of...

Q: A set of 200 independent patients take antiacid medication at the start

A set of 200 independent patients take antiacid medication at the start of symptoms, and 80 experience moderate to substantial relief within 90 minutes. Historically, 30% of patients experience relief...

Q: Assume that X is normally distributed with a mean of 10 and

Assume that X is normally distributed with a mean of 10 and a standard deviation of 2. Determine the following: a. P(Z < 13) b. P(Z > 9) c. P(6 < X < 14) d. P(2 < X < 4) e. P(−2 < X < 8)

Q: Assume that X is normally distributed with a mean of 10 and

Assume that X is normally distributed with a mean of 10 and a standard deviation of 2. Determine the value for x that solves each of the following: a. P(X > x) = 0.5 b. P(X > x) = 0.95 c. P(x < X < 1...

Q: An article in Knee Surgery Sports Traumatology Arthroscopy [“Effect of Provider

An article in Knee Surgery Sports Traumatology Arthroscopy [“Effect of Provider Volume on Resource Utilization for Surgical Procedures” (2005, Vol. 13, pp. 273–279)] showed a mean time of 129 minutes...

Q: The time until recharge for a battery in a laptop computer under

The time until recharge for a battery in a laptop computer under common conditions is normally distributed with a mean of 260 minutes and a standard deviation of 50 minutes. a. What is the probability...

Q: A driver’s reaction time to visual stimulus is normally distributed with a

A driver’s reaction time to visual stimulus is normally distributed with a mean of 0.4 seconds and a standard deviation of 0.05 seconds. a. What is the probability that a reaction requires more than 0...

Q: Cholesterol is a fatty substance that is an important part of the

Cholesterol is a fatty substance that is an important part of the outer lining (membrane) of cells in the body of animals. Its normal range for an adult is 120–240 mg/dl. The Food and Nutrition Instit...