T_test_single_sample_08

T_test_single_sample_08 - Test#2 Results 9 8 7 Frequency 6...

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Test #2 Results GRADES F D C B A Frequency 9 8 7 6 5 4 3 2 1
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T test for a single sample one sample is selected from a population a sample average after treatment is compared to a population average population * average is known population standard deviation is unknown standard error (i.e., variability in the distribution of sample means) is computed based on a sample standard deviation & it is called an estimated standard error value of critical t depends on degrees of freedom (df= n-1) * from which sample was selected
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T test one-sample A researcher wants to know if a new disease is accompanied by an increase in body temperature. The body temperature of 12 patients diagnosed with the disease is listed below: 99.3, 99.1, 98.2, 98.9, 99.7, 100.1, 100.7, 100.4, 98.8, 99.1, 99.2, 99.0 Does the body temperature of these patients differ from the population average of 98.6 ? Use a two- tailed test & a .05 significance level.
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HYPOTHESIS: H o : population average temp. equals
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This note was uploaded on 11/12/2009 for the course PSY 3301 taught by Professor Staff during the Fall '08 term at Texas State.

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T_test_single_sample_08 - Test#2 Results 9 8 7 Frequency 6...

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