Lecture Notes
... Other Texts and Software (3) What SPSS calls ‘Variance’ is: SS/(N-1), the estimate of the population variance based upon the sample data (est. σ²). What it calls ‘Standard Deviation’ is the square root of that (est. σ). SPSS doesn’t tell you that and its ‘Help’ menu doesn’t either. This is one of t ...
... Other Texts and Software (3) What SPSS calls ‘Variance’ is: SS/(N-1), the estimate of the population variance based upon the sample data (est. σ²). What it calls ‘Standard Deviation’ is the square root of that (est. σ). SPSS doesn’t tell you that and its ‘Help’ menu doesn’t either. This is one of t ...
Here
... then the sample mean is not a good estimator of the location parameter θ. The reason for this is that the Cauchy distribution allows, with a large probability very large values, and does in fact not even have a well-defined (finite) expected value. This means that the sample may contain some extreme ...
... then the sample mean is not a good estimator of the location parameter θ. The reason for this is that the Cauchy distribution allows, with a large probability very large values, and does in fact not even have a well-defined (finite) expected value. This means that the sample may contain some extreme ...
you will have to put the appropriate sign on the critical value, +, –, or
... A Hypothesis is a statement (claim) regarding a characteristic of one or more populations. Hypothesis Testing is a procedure, based on sample evidence and probability, used to test statements (claims) regarding a characteristic of one or more populations. Because we use sample data to test hypothese ...
... A Hypothesis is a statement (claim) regarding a characteristic of one or more populations. Hypothesis Testing is a procedure, based on sample evidence and probability, used to test statements (claims) regarding a characteristic of one or more populations. Because we use sample data to test hypothese ...
Confidence Intervals & Sample Size
... • A researcher wishes to estimate the number of days it takes an automobile dealer to sell a Chevrolet Aveo. A sample of 50 cars had a mean time on the dealer’s lot of 54 days. Assume the population standard deviation to be 6.0 days. Find the best point estimate of the population mean and the 95% co ...
... • A researcher wishes to estimate the number of days it takes an automobile dealer to sell a Chevrolet Aveo. A sample of 50 cars had a mean time on the dealer’s lot of 54 days. Assume the population standard deviation to be 6.0 days. Find the best point estimate of the population mean and the 95% co ...
Slide 1
... • The χ 2 test does not allow you to conclude anything more specific than that there is some relationship in your sample between gender and commercial liked (at α = 0.05). Examining the observed versus expected counts in each cell might give you a clue as to the nature of the relationship and which ...
... • The χ 2 test does not allow you to conclude anything more specific than that there is some relationship in your sample between gender and commercial liked (at α = 0.05). Examining the observed versus expected counts in each cell might give you a clue as to the nature of the relationship and which ...
