Term
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Definition
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Term
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Definition
| Standard Deviation Squared |
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Term
| Standard Deviation Formula |
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Definition
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Term
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Definition
| (za/2)*(standard deviation/sqrt(n)) |
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Term
| The Center of a normal curve is, |
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Definition
| Is the mean of the distribution. |
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Term
| For standard normal distribution, the area of the left of the mean is |
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Definition
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Term
| Sampling distribution of x-bar is |
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Definition
| Probability distribution of the sample mean |
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Term
| As the number of degrees of freedom for a t-distribution increases, the difference between the t distribution and the standard normal distribution |
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Definition
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Term
| As the sample size increases, the margin of error |
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Definition
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Term
| When constructing a confidence interval for the population mean and the standard distribution of the sample is used, the degrees of freedom for the t-distribution equals |
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Definition
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Term
| The probability of committing a Type I error when the null hypothesis is true is ________ and denoted by ________. |
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Definition
| level of significance, alpha |
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Term
| The probability of committing a Type II error is denoted by |
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Definition
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Term
| If a hypothesis is rejected at 5% significance it, |
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Definition
| May or may not be rejected at the 1% level of significance |
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Term
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Definition
| sample standard deviation |
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Term
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Definition
| population standard deviation |
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Term
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Definition
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Term
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Definition
| Searching the test statistic in the chart. |
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Term
| How Do You Do A Test Statistic Chart Search in the t-chart? |
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Definition
| df on the y-axis, ta/2 on the x-axis |
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Term
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Definition
a = 10
a/2 = 5
za/2 = 1.645 |
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Term
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Definition
a = 5
a/2 = 2.5
za/2 = 1.96 |
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Term
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Definition
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Term
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Definition
a = 1
a/2 = .5
za/2 = 2.576 |
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