Determine number of revolutions tire makes per minute
The typical tire for the compact car is 22 inches in diameter. If car is traveling at the speed of 60mph, determine number of revolutions tire makes per minute.
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Draw a few sample functions of the RP. Determine the mean and autocorrelation functions of this RP
The population standard deviation for boys is 2.1 minutes. An independent random sample of 50 girls showed average length of time in minutes. Determine a 95 % confidence interval for difference in population mean time spent on the telephone betwee
If specifications need base of box to have the area of 700 sq. in., what size squares must be cut from every corner?
At the 5% significance level, do data give sufficient evidence to conclude that at this specific company the mean salary of female employees is less than the mean salary of male employees? Employ the critical-value approach
Find out p(3). Develop a probabilty histogram for p(x).
Two pulleys of diameters 4m and 2m are connected to the belt. Larger pulley rotates 80 times per minute. Determine speed of belt in meters per second and angular velocity of the smaller pulley.
The mean weight was 20.4 pounds; the standard deviation, 0.5 pounds. How many boxes should the processor sample to be 95 percent confident that sample mean doesn't differ from population mean by more than 0.2 pounds?
A random sample of 85 group leaders, supervisors, as well as similar personnel at the General Motors revealed that, on average, they spent 6.5 years upon the job before being promoted. The standard deviation of sample was 1.7 years. Develop a 95 p
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