Calculate the value of the test statistic
[PDF File]Section 13 Kolmogorov-Smirnov test.
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We accept H0 since the p-value is 0.6502. ’CV’ is a critical value such that H0 is rejected if statistic ’KSSTAT’>’CV’. Remark. KS test is designed to test a simple hypothesis P = P0 for a given specified distribution P0. In the example above we estimated this distribution, N(µ,ˆ ˆ2) from the data
[PDF File]Using the TI-83/84 Plus Chapter 8: Hypothesis Testing ...
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will calculate the test statistic and the P-value for the test statistic. It does not give you the critical value. For tests about means, you can either input raw data via a list or simply enter the sample statistics. In all cases you will need to input a value from the null hypothesis and whether the test is left, right, or two-tailed.
[PDF File]QM353: Business Statistics Chapter 3
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a. the decision rule in terms of the critical value of the test statistic b. the calculated value of the test statistic c. the conclusion 9.28. A test of hypothesis has the following hypotheses: For a sample size of 30, and a sample proportion of 0.55, a. For an α = 0.025, determine the critical value. b. Calculate the numerical value of the ...
[PDF File]Lecture 5 Hypothesis Testing in Multiple Linear Regression
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The observed F statistic is F 0 = 1670/3/123.48 = 13.5 > F 3,493,.95 = 2.62, and we reject the null hypothesis, concluding that at least one of β 2, β 3 or β 4 is not equal to 0. This should look very similar to the overall F test if we considered the intercept to be a predictor and all the covariates to be the additional variables under ...
[PDF File]A Permutation F-Test
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the test statistic Fhas an F-distribution with k 1 degrees of freedom for the numerator and (k 1)(b 1) degrees of freedom for the denominator. In this case, the experimenter compares the F-statistic to the F[(k 1)(b 1)] distribution to determine a p-value for the test.
[PDF File]Sample questions: EXAM 2
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Statistic DF Value Prob-----Chi-Square 6 8.871 0.181 b. Give all steps of the chi-squared test, explaining how to interpret the P-value. c. Explain what further analyses you could do that would be more informative than a chi-squared test. The following questions are true or false. Indicate T or F next to each. 6.
[PDF File]Power of a Statistical Test - MoreSteam
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The 5% critical value from the standard normal distribution is 1.645. Equating the critical Z-value to the calculated Z gives the corresponding (hypothetical) sample mean value: 4 1.645 5.645 1 X X − =⇒= 2. Calculate the Z-statistic assuming the alternative hypothesis is true, i.e., μ 1 = 6: 1 5.645 6 0.355 2/ 4 X Z n μ σ − − == =− ...
[PDF File]11.1 Computing the test statistic and p-value
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1. Use proc means to compute the mean of the scores, and then compute the value of the test statistic by hand. Answer: z = . 2. Use the standard normal table in your book to compute the p-value of the test statistic. (Be careful to remember that this is a one-sided alternative hypothesis.) Answer: p-value = .
[PDF File]fx-991EX can calculate several one-variable statistics ...
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Enter data by typing in each value one at a time, with each . followed by the p key. 70.5p, 74p, etc. To calculate the 1-Variable statistics for this data set, press . i3(1-Variable Calc). STATISTICS. fx-991EX Quick Start Guide 21 Press . C to return to the data entry screen.
[PDF File]HYPOTHESIS TESTING FOR POPULATION MEAN P-value Method
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Step 2: Calculate the value of the test statistic under the null hypothesis being true. If ˙2 known, use z 0 = x 0 ˙= p n. If ˙2 unknown, and parent population is normal, use t 0 = x 0 s= p n; Step 3: Compute the p-value associated with the test statistic. (i) Determine the reference distribution (a Zor t n 1). (ii) Find the p-value:
[PDF File]Multiple Hypothesis Testing: The F-test
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test, say, the hypothesis that some variable has no effect on the dependent variable. All we do is calculate a t-statistic for this null hypothesis and our data and see if that test statistic is unlikely under the null distribution (the Student’s t-distribution). Unfortunately, when we have more complicated hypotheses, this test no longer works.
[PDF File]Lecture 7: Hypothesis Testing and ANOVA
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value by comparing its value to distribution of test statistic’s under the null hypothesis •Measure of how likely the test statistic value is under the null hypothesis P-value ≤ α ⇒ Reject H 0 at level α P-value > α ⇒ Do not reject H 0 at level α •Calculate a test statistic in the sample data that is relevant to the hypothesis ...
[PDF File]Tests of Significance
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P-Value After computing the test statistic, the next step is to find out the probability of obtaining this score when the null hypothesis is true. The Normal curve helps researchers determine the percentage of individuals in the population who are located within certain intervals or above or below a certain score.
[PDF File]14.1 The Wilcoxon Rank Sum Test
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Our test statistic is the rank sum 23 for the weed-free plots. To calculate the -value ( 23), we need to know the sampling distri-bution of the rank sum when the null hypothesis is true. This distribution dependsonthetwosamplesizes and .Tablesarethereforeabitunwieldy,
[PDF File]Chapter 8 Hypothesis Testing Notes
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Given a claim and sample data, calculate the value of the test statistic. The test statistic is a value used in making a decision about the null hypothesis, and is found by converting the sample statistic to a score with the assumption that the null hypothesis is true. Test Statistic - Formulas Very similar to critical values from the last unit.
[PDF File]CHAPTER 8: Hypothesis Testing
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Test Value (test statistic) – the numerical value obtained from a statistical test. **Each statistical test that we will look at will have a different formula for calculating the test value. In reality, the null hypothesis may or may not be true, and a decision is made to reject or not reject it on the basis of the data obtained from a sample ...
[PDF File]Hypothesis Testing with t Tests - University of Michigan
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Write the symbol for the test statistic (e.g., z or t) 2. Write the degrees of freedom in parentheses 3. Write an equal sign and then the value of the test statistic (2 decimal places) 4. Write a comma and then whether the p value associated with the test statistic was less than or greater than the cutoff p value of 05value of .05
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