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[DOC File]1 - BrainMass
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Right-tailed Test: Find the area under the normal curve drawn in step 2 to the left of x-bar Example 1: The current wood preservative (CUR) preserves the wood for 6.40 years under certain conditions.
right tail left tail statistics

[DOC File]Chapter 7 Part II Hypothesis Testing
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A one-tailed test is either a right-tailed test or left-tailed test, depending on the direction of the inequality of the alternative hypothesis. Example . Finding the Critical Value for =0.01 (Right-Tailed Test) using The standard normal distribution N(0,1). Solution. …
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Tailed Hypothesis Tests | Six Sigma Study Guide
a. Right-tailed test because the rejection region is in the right tail of the distribution curve. b. Two-tailed test because the rejection region lies in both tails of the distribution curve. c. Left-tailed test because the rejection region lies in the left tail of the distribution curve. a. Left-tailed test b. Right-tailed test c. Two-tailed …
left or right tailed

[DOC File]Chapter Nine - MDC
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A one-tailed test is either right-tailed or left-tailed, depending on the direction of the inequality of the alternative hypothesis. Left-Tailed Test. Right-Tailed Test. Two-Tailed Test. In a two-tailed test, the null hypothesis should be rejected when the test value is in either of the two critical regions. Hypothesis-Testing (Traditional Method)
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[DOC File]8 - Faculty Websites
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Left-Tailed Test. Right-Tailed Test. Two-Tailed Test. Critical Region or Rejection Region - Step 5: Find the Critical Value(s) Separates the shaded region(s) from the non-shaded region(s) Step 6: Find the Test Statistic. T.S. = Step 7: Reject or Fail to Reject the Null Hypothesis. Write “Reject the ” …
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[DOC File]Hypothesis Testing: Overview Example
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Note: how we define the difference will determine right or left tailed tests (positive or negative differences) Instructions how to use the TI-83 and Excel to help us are given on page 587. Example Problem: Carowinds quality control manager feels that people are waiting in line for the new roller coaster too long. To determine is a new loading ...
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Chapter Nine
Look to Ha for tails of test. < left-tailed > right tailed = two-tailed. t-table read t alpha, d.f. for t.05, 60 = +1.671 (look familiar? 1 std. deviation from mean) graph rejection region: Step 5) Calculate test statistic (I call this tcalculated, or tcalc) In this case, it’s a single mean test with an unknown population mean, so:
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[DOC File]Section 1
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Classify the hypothesis as two-tailed, left-tailed, or right -tailed In the past, the mean running time for a certain type of flashlight battrery has been 8.3 hours. the manufacturer has introduced a change in the production method and wants to perform a hypothesis test to determine whether the mean running time has changed as a result.
left tailed vs right tailed

Left tailed right tailed