# Question: Refer to Exercise 7 30 Suppose that there are two machines

Refer to Exercise 7.30. Suppose that there are two machines available for cutting corks. The machine described in the preceding problem produces corks with diameters that are approximately normally distributed with mean 3 centimeters and standard deviation 0.1 centimeter. The second machine produces corks with diameters that are approximately normally distributed with mean 3.05 centimeters and standard deviation 0.01 centimeter. Which machine would you recommend?

## Answer to relevant Questions

A gasoline tank for a certain car is designed to hold 15 gallons of gas. Suppose that the variable x 5 actual capacity of a randomly selected tank has a distribution that is well approximated by a normal curve with mean 15.0 ...Measures of nerve conductivity are used in the diagnosis of certain medical conditions. The paper “Effects of Age, Gender, Height, and Weight on Late Responses and Nerve Conduction Study Parameters” (Acta Neurologica ...Ecologists have long been interested in factors that might explain how far north or south particular animal species are found. As part of one such study, the paper “Temperature and the Northern Distributions of Wintering ...Let x denote the systolic blood pressure of an individual selected at random from a certain population. Suppose that the normal distribution with mean m 5 120 mm Hg and standard deviation σ = 10 mm Hg is a reasonable model ...Let x denote the time (in minutes) that it takes a fifth-grade student to read a certain passage. Suppose that the mean value and standard deviation of x are µ = 2 minutes and s = 0.8 minute, respectively. a. If x is the ...Post your question