Homework Answers
Answer) If SS remains constant,
A) Increase in sample size will decrease the sample variance.
B) A decrease in the degree of freedom will increase the sample variance.
C) Increase in population size will have no effect on the sample variance.
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20. If the value of the SS remains constant, state whether each of the following will...
1 Will making each of the following changes increase, decrease, or have no effect on the...
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Assuming that the population variances are equal, is there evidence that the overall score of pharm is greater than grocery-store pharmacies (a.05)? a) State the null hypothesis b) State th...
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Capter question 17 Aa Aa A random sample of n 8 scores is obtained from a...
Capter question 17 Aa Aa A random sample of n 8 scores is obtained from a population with a mean of μ administered to the individuals in the sample, the sample mean is found to be M 50. After a treatment is 55. t Distribution Degrees of Freedom 21 ,250 2500 -3.0 -2.0 0.0 1.0 2.0 3.0 0:686 0.686 Assuming that the sample variance is s2 32, use a two-tailed hypothesis test with α = .05 to deter mine whether...
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Assuming that the population variances are equal, is there evidence that the overall score of pharm is greater than grocery-store pharmacies (a.05)? a) State the null hypothesis b) State the alternative hypothesis c) What critical values should be used? d) What is the test statistic? e) What is the p-value? a) b) c) d) e) eaning of the p-value be rejected g) h) g) Should the nu h) What is the conclusio ) State one of the assumption j) State...
1. Circle the appropriate word choice in each of a thru e below. All else being the same, the chances of getting a "significant result” increases as a. Sample size (increases/decreases) b. Population std deviation (increases/decreases) c. Effect size (increases/decreases) d. Alpha (increases/decreases) e. P-value of a test (increases/decreases) 2. For fixed sample size, decreasing alpha (increases/decreases) beta, and increases/decreases the power of the test? 3. For fixed alpha, decreasing sample size will increase/decrease) power? 4. For fixed alpha and...
6. We want to test whether there is an equal ratio of freshman to sophomores to juniors to seniors at UC Davis. I perform a Goodness of Fittest and to reject the null hypothesis then a. the sample distribution was extremely uneven across dasses b. we conclude that the ratio in the null hypothesis is plausible c. we know the test statistic was larger than the critical value d. we know the degrees of freedom for the test was 7....
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