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Steel rods are produced for a particular customer to specifications targeting 0.2 meters and must be scrapped if they are shorter than 0.18 meters or longer than 0.24 meters. If the rods' lengths produced by your line are normally distributed, with a mean equal to the target of 0.2 meters, and a standard deviation of 0.015m, what percentage of rods will be scrapped?
For sample of size 100, what is the mean and standard deviation of the sample mean.
He argues that regression effect says people who do very poorly in their previous job tend to perform well in their next job. Is this what the regression effects? Describe in detail.
Recognize independent variable and dependent variable for this experiment. Think in your head what influences what? Or, what causes what? Cause is independent variable.
A simple random sample of 1000 Americans found that 61% were satisfied with the service provided by the dealer from which they bought their car.
In the real world, given null hypothesis is false; but the collected data lead to the null hypothesis being accepted. That is, the data lead to a failure to reject null hypothesis.
A frequency polygon: does not depend on one variable. True-False
To make a p-chart for the nonconforming units. The coating of the candy bar is currently make by a process which can result in surface cracking.
Four properties are randomly selected from each neighborhood and the ratios recorded for each as follows:
Construct ogive cure and numerical measures for the discrete data.
Construct the 90% and 95% interval estimates for the population mean weekly sales.
Find out the probability distribution of blood types by gender in the group of 1000 individuals.The table below gives the distribution of blood types by gender in a group of 1000 individuals.
What is the OR of getting cancer fora late child birth woman compared to an early first birth woman?
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