Right tailed left tailed or two tailed

    • [PDF File]Chapter 7 Hypothesis Testing with One Sample

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      hypothesis test is a left-tailed, right-tailed, or two-tailed test. a.) A cigarette manufacturer claims that less than one-eighth of the US adult population smokes cigarettes. b.) A local telephone company claims that the average length of a phone call is 8 minutes. Ha:p< 0.125 (Claim) H0:p≥0.125 Left-tailed test Ha:µ≠8 H0:µ= 8 (Claim)

    • [PDF File]CHAPTER 8: Hypothesis Testing

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      If the test is right-tailed, the critical region, with area equal to α, will be on the right side of the distribution curve. If the test is two-tailed, α must be divided by 2; the critical regions will be in each end of the distribution curve - half the area in the left part of the distribution and half of the

    • Stats: Test 3 Review MULTIPLE CHOICE. Choose the one ...

      right-tailed, or two-tailed. A)two-tailed B)right-tailed C)left-tailed 1) 2)A researcher claims that 62% of voters favor gun control. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. A)left-tailed B)right-tailed C)two-tailed 2) 3)A car maker claims that its new sub-compact car gets better than 47 ...

    • [PDF File]In statistics, a hypothesis is a claim or statement about ...

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      Two-tailed, Left-tailed, Right-tailed The tails in a distribution are the extreme regions bounded by critical values. Determinations of P-values and critical values are affected by whether a critical region is in two tails, the left tail, or the right tail. It therefore becomes important to correctly characterize a hypothesis test as two-tailed,

    • [PDF File]Chapter 9 and 10 Practice - Anne Gloag's Math Page

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      left - tailed, right - tailed, or two - tailed. 8) A car maker claims that its new sub - compact car gets better than 49 miles per gallon on the highway. Determine whether the hypothesis test for this is left - tailed, right - tailed, or two - tailed.

    • [PDF File]Harold’s Statistics Hypothesis Testing Cheat Sheet ...

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      2) Graph: Sketch and label critical value (left-tailed, right-tailed, two-tailed) 3) Decision Rule: Use significance level (𝛼), confidence level (C), confidence Interval, or critical value (𝑧 ). e.g. We will reject 𝐻0 if 𝑧 𝑎𝑡𝑎>1.645 4) Critical Value: Determine critical values (𝑧 ) to mark the rejection regions

    • [PDF File]HW4 Date: , Name

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      highway. Determine whether the hypothesis test for this is left-tailed, right-tailed, or two-tailed. A) left-tailed B) right-tailed C) two-tailed 6) 7) The owner of a professional basketball team claims that the mean attendance at games is over 25,000 and therefore the team needs a new arena. Determine whether the hypothesis test for this claim ...

    • [PDF File]Probability & Statistics Name Chapter 7 Pretest Date

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      right-tailed, or two-tailed. A) right-tailed B)two-tailed C) left-tailed 1) 2) A brewery claims that the mean amount of beer in their bottles is at least 12 ounces. Determine whether the hypothesis test for this claim is left-tailed, right-tailed, or two-tailed. A) two-tailed B)left-tailed C) right-tailed 2)

    • [PDF File]Using the TI-83/84 Plus Chapter 8: Hypothesis Testing ...

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      0), left-tailed ( < 0) or right-tailed ( > 0). 4.Highlight Calculate and hit ENTER 5.It gives you the test statistic (z) and the P-value for the test statistic (p) based on your choice of two-tailed, left-tailed, or right-tailed test (so make sure you entered that correctly). Warning: The P-value may be given in scienti c notation.

    • [PDF File]Module 10 Test

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      A one-sample z-test for a population mean is to be performed.The value obtained for the test statistic, z = x - µ 0 σ/ n, is given. The nature of the test (right-tailed, left-tailed, or two-tailed) is also specified.Determine the P-value. 7) A right-tailed test: z = 2.38 A) 0.9913 B) 0.9826 C) 0.0087 D) 0.0174

    • Chapter 8

      For a left-tailed test, use the z value that corresponds to the area equivalent to α in Table E. b. For a right-tailed test, use the z value that corresponds to the area equivalent to 1 – α. c. For a two-tailed test, use the z value that corresponds to α / 2 for the left value. It will be negative. For the right value, use the z value that

    • [PDF File]Chapter 9 and 10 Practice - Anne Gloag's Math Page

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      left - tailed, right - tailed, or two - tailed. 13) A brewery claims that the mean amount of beer in their bottles is at least 12 ounces. Determine whether the hypothesis test for this claim is left - tailed, right - tailed, or two - tailed. 14) A car maker claims that its new sub - compact car gets better than 49 miles per gallon on the highway.

    • [PDF File]Module 10 Test

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      The nature of the test (right-tailed, left-tailed, or two-tailed) is also specified. Determine the P-value. 5) A left-tailed test: z = -0.58 A) 0.4380 B) 0.7190 C) 0.5620 D) 0.2810 The significance level and P-value of a hypothesis test are given. Decide whether the null hypothesis should be

    • [PDF File]Example 1

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      The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tails, right-tailed, or two-tailed. What parameter is being tested? H 0: = 110 H 1: > 110 This is an equal hypothesis versus a ‘greater than’, so this is right-tailed.

    • [PDF File]Hypothesis Testing

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      One-tailed vs. two-tailed tests In our examples so far we have considered: H 0: = 0 H 1: > 0. This is a one-tailed test with the critical region in the right-tail of the test statistic X. 0 reject H 0

    • [PDF File]One-tailed Test or Two-tailed Test - Nipissing University

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      ), a two-tailed test is applied. In a one-tailed test, the critical region has just one part (the green area below). It can be a left-tailed test or a right-tailed test. Left-tailed test: The critical region is in the extreme left region (tail) under the curve. Right-tailed test: The critical region is in the extreme right region (tail)

    • [PDF File]Ch. 10 Hypothesis Tests Regarding a Parameter

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      A) Left-tailed, σ B) Right-tailed, μ C) Right-tailed, σ D) Left-tailed, s SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

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