regression, Applied Statistics

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Linear regression, Linear Regression Generally, in two mutually related...

Linear Regression Generally, in two mutually related statistical series, the regression analysis based on graphic method. Under graphic method the values  of X and Y variable

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In simple regression the dependent variable Y was assumed to be linearly related to a single variable X. In real life, however, we often find that a dependent variable may depend o

Find the inverse laplace transform, Q. Find the inverse Laplace transform o...

Q. Find the inverse Laplace transform of Y (s) = s-4/s 2 + 4s + 13 +3s+5/s 2 - 2s -3. Q. Use the Laplace transform to solve the initial value problem y''+ y = cos(3t), y(0) =

Measures of dispersion, Measures of Dispersion ...

Measures of Dispersion Box 3: Food vs. Oil Below are the figures for foodgrain procurement   and cr

Random sampling method, Random Sampling Method In this method the units...

Random Sampling Method In this method the units are selected in such a way that every item in the whole universe has an equal chance of being included. In the words of croxton

Multiple regressions, A sample of 43 houses that were purchased in the Sout...

A sample of 43 houses that were purchased in the Southern California town Monrovia within a month was collected. We are interested in the study of the relationships between Price a

Small sample test for mean, If the sample size is less than 30, then we nee...

If the sample size is less than 30, then we need to make the assumption that X (the volume of liquid in any cup) is normally distributed. This forces    (the mean volume in the sam

Determine relative frequency, A sample of college students and a separate s...

A sample of college students and a separate sample of adults aged 30-59 were surveyed regarding the amount of fruit they eat each day.  The results are shown in the histograms belo

What are the null and alternative hypotheses, Test the following claim. Id...

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