o illustrate the application of the t-test in the one-sample case, consider again the hybrid-vehicle problem mentioned earlier. With a sample of 100 vehicles, the researchers find that the mean miles per gallon for the car is 52.5 mpg, with a standard deviation of 14. Do these results indicate the population mean might still be 50? In this problem, we have only the sample standard deviation (s). This must be used in place of the population standard deviation (s). When we substitute s for s, we use the t distribution, especially if the sample size is less than 30. Our significance value for acceptance of hypothesis will be z=t=1.96. Test this example by using t-test.
To illustrate the application of the t-test in the one-sample case, consider again the
hybrid-vehicle problem mentioned earlier. With a sample of 100 vehicles, the researchers find that
the mean miles per gallon for the car is 52.5 mpg, with a standard deviation of 14.
Do these results indicate the population mean might still be 50?
In this problem, we have only the sample standard deviation (s). This must be used in place of the
population standard deviation (s).
When we substitute s for s, we use the t distribution, especially if the
Our significance value for acceptance of hypothesis will be z=t=1.96.
Test this example by using t-test.
Assume only 10 values for X and Y by voluntarily. Calculate co-efficient of determination and also draw
regression equation y= α+bx+e (explained it as per lecture)
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