2 sample test statistic calculator
[DOC File]Stat 301 Review (Test 2) - Purdue University
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Type of test When is it used? Confidence interval Hypothesis test procedure 1-sample. z-test One set of data. σ is known. Quantitative data To find the z* value, look at the last row of the t-table. Hypotheses: versus, or . Test Statistic: P-value:, use ,, use , or, use . Look up P-values on TABLE A 1-sample. t-test One set of data. σ is unknown
[DOC File]BIOL 2060 PROBLEM SET 2 - York University
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BIOL 2060 PROBLEM SET 2. 1. For each data set below, determine each of the following by hand using a simple non-programmable calculator . Note that during your tests and exams you will only be allowed to use a simple non-programmable calculator so you must know how to do these kinds of calculations with it. data set 1 data set 2 data set 3 data set 4. 1 14.1 398.1 61.32 3 16.3 -20.2 -21.10. 6 ...
[DOC File]MTH 265 – Statistics for Scientists and Engineers
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Find it under the 2 sample T-Test. Be able to calculate the test statistic, which is a t-value in this case. Be able to compute the P-value and be able to write out the probability statement for the P-value that involves the test statistic. Know when to pool the sample standard deviations. Be able to determine whether or not the null hypothesis should be rejected. 6.10 The Chi-Square Test. Be ...
[DOC File]Chapter 2 Answers - TEST BANK 360
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The test statistic is: , reject if . 2.34. Reconsider the bottle filling experiment described in Problem 2.20. Rework this problem assuming that the two population variances are unknown but equal. Minitab Output. Two-Sample T-Test and CI: Machine 1, Machine 2. Two-sample T for Machine 1 …
[DOC File]Statistics Calculator - My Math Genius
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Alpha 0.01 Null 0.3 P-hat 0.39 Sample Size 225 Test Statistic: Z 2.945941518 Critical Value: 2 Tails -2.575829304 2.575829 Critical Value: 1 Tail Upper 2.326347874 Critical Value: 1 Tail Lower -2.326347874 p-value: 2 Tail 0.003219733 p-value: 1 Tail Upper 0.001609866 p-value: 1 Tail Lower 0.998390134 We computed the test statistic to be ~2.95. And the critical value or a 1 tail upper at 1% …
[DOC File]STATS CHEAT SHEET - StFX
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In order to run a Z-Test you must be provided with. Population (Population (Equation: Critical Z-Test values: 1-Tailed 2-Tailed α = .05 1.64 1.96/-1.96 α = .01 2.33 2.58/-2.58 EXAMPLE: SINGLE SAMPLE T-TEST. In order to run a Single Sample T-test you must: Be provided with Population (Use the sample Standard Deviation to predict Population ...
[DOC File]A
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5. For this test , is the test statistic a Z distribution or T distribution or something else? Explain how you know. Write the Formula for the test statistic (NOT with numbers, just the general formula). We use the T distribution since that is appropriate for two independent sample tests. T = 6. Find the value of the . test statistic
[DOC File]Two Sample Tests
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HW 2 – 2 Sample Tests using the GDC. Directions: Set up the hypothesis. Write the formula. Use the calculator to find the test statistic and p-val. David E. Brown is an expert in wildlife conservation. In his book, he recorded the weights of adult grey wolves from two regions in Old Mexico. Find and interpret the 85% confidence interval for the difference in weights of the wolves from the ...
[DOCX File]www.math.arizona.edu
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Test 2 – covers chapters 12 – 23 (excludes chapter 19) It is always a good idea to look at the chapter summaries at the end of every chapter and to do the “Check your skills” problems. Of course, it is also a good idea to do more exercises than you are assigned. Remember you will be given no tables on the exam. You expected to know how to use your calculator to answer questions about ...
[DOC File]2 Goodness of Fit Test - De Anza College
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Find the test statistic and pvalue and draw the graph . Test statistic = Test statistic is a number measuring the size of the differences between observed sample data and expected data (2 distribution , right tailed test ; df = # of CELLS – 1 . 2nd DISTR (2cdf ( test statistic, 10^99, df)
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