Level of significance in hypothesis testing

    • [DOC File]Hypothesis Testing Examples

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      In hypothesis testing, there is a preconceived idea about the value of the population parameter. For example, in studying the antipsychotic properties of an experimental compound, we might ask whether the average shock-avoidance response of rats treated with a specific dose of the compound is greater than 60, >60, the value that has been ...

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    • [DOC File]A hypothesis is a claim or statement about a property of a ...

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      Suppose you recently took a random sample of 30 households in Huntsville and the results revealed a mean of $84.50 and a standard deviation of $14.50. Using a 0.05 level of significance, can it be concluded that the average amount spent per day by U.S. households has decreased? Ho: μ = 90. Ha: μ < 90-2.078 Reject Ho if t < -1.699. Reject Ho

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    • [DOC File]Hypothesis Testing Worksheet

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      Variance hypothesis testing examples. 8. Tests in statistics classes have scores with a standard deviation equal to 14.1. One of recent classes has 27 test scores with a standard deviation of 9.3. Use a 0.01 significance level to test the claim that this current class has less variation than past classes.

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    • [DOC File]SPSS & Hypothesis Testing - Pacific University

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      What are the three forms that the alternative hypothesis can assume? Discuss what is meant by a test statistic. Discuss what is meant by a P-value, and in particular, how it relates to the null hypothesis. What is meant by the term "statistically significant"? What is a significance level? _____ 1.) Interpreting the Results of a Hypothesis Test

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    • [DOC File]Lab 7: Hypothesis Testing - Rice University

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      At a 5% level of significance, perform the hypothesis test. Example F: A certain medication is supposed to contain a dosage of 250 mg per pill. A lab is quality testing the drug to determine if it contains the correct dosage, on average.

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    • [DOC File]Statistics

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      Hypothesis Testing. ... This is a two part activity during which the students determine what type of hypothesis test to run given a problem and data. It will expose your students to using the list feature and collecting their own data. ... Use a 5% level of significance. Starting Activity 1: Clear activity data: Go to . Edit>Clear Activity Data.

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    • Hypothesis Testing - Texas Instruments

      A sample of 49 customers over a three-week period was randomly selected and the average amount spent was $22.60. Assume that the standard deviation is known to be $2.50. Using a 0.02 level of significance, would we conclude the typical amount spent per customer is more than $20.00? 2.

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    • [DOC File]Hypothesis Testing Examples - Huntsville, TX

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      Hypothesis Testing . Hypothesis testing is a decision making process for evaluating claims about a population. The researcher must: Define the population under study . State the hypothesis that is under investigation . Give the significance level . Select a sample from the population . Collect the data . Perform the statistical test . Reach a ...

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    • [DOC File]Hypothesis Test for a Population Mean

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      In hypothesis testing, the researcher must define the population under study, state the particular hypotheses that will be investigated, give the significance level, select a sample from the population, collect the data, perform the calculations required for the statistical test, and reach a conclusion.

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    • Level of Significance in Hypothesis Testing

      reject H0 at the 5% significance level? 7. Carry out the hypothesis test in 6 to verify your answer: 8. Last year the government made a claim that the average income of the American people was $33,950. However, a sample of 50 people taken recently showed an average income of $34,076 with a population standard deviation of $324.

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