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Is a system with impulse response g(t, τ) = e-2Itl-|τ|, for t ≥ τ, BIBO stable? How about g(t, τ) = sin t(e-(t-τ)) cos τ?
Is there a significant difference between claimed and actual mean weight today? Justify your answer.
The mean value of land and buildings per acre for farms in Colorado is $1170. A random sample of 32 colorado farms is selected. What is the probability that the mean value of land and buildings per acre for the sample is (a) less than $1200 (b) ..
Six new employees, two of whom are married to each other, are to be assigned six desks that are lined up in a row.
The manufacturer would like to establish inventory levels such that there is only a five percent chance of running out of stock. Where should the manufacturer set the inventory level?
1. in a study of the income of u.s. factory workers a random sample of 100 workers shows a sample mean of 35000. assume
a local authority installs 2000 electric lamps. the life of lamps in hours x follows a normal distribution where
Determine whether each of the following is a descriptive or an inferential statistics problem.
Would you classify these data as time series or cross-sectional and which of the variables are quantitative and which are qualitative?
What are the predictor and response variables? Make a scatterplot of the data and find r to see if a linear pattern seems to exist. If it appears to have a linear relationship, find the regression line. Dont forget to state what r is, and interpret..
No, there is not sufficient information to reject the hypothesis that the proportion of cats and the proportion of dogs that sleep more than 10 hours per day are the same because the test value -0.65 is inside the acceptance region (-1.96,1.96).
Why was Lincoln elected in 1860? What surprised you?
Ten people agree to take part in an experiment designed to determine whether a persons weight differs between morning & evening.
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