A researcher wants to know if there is a difference between the mean amount of sleep that people get for various types o

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A Researcher Wants To Know If There Is A Difference Between The Mean Amount Of Sleep That People Get For Various Types O 1 (154.75 KiB) Viewed 6 times

A researcher wants to know if there is a difference between the mean amount of sleep that people get for various types of employment status. The table below shows data that was collected from a survey. Part Time Worker Unemployed Full Time Worker 10 7 7 7 10 10 7 8 8 6 9 8 6 6 8 6 Assume that all distributions are normal, the three population standard deviations are all the same, and the data was collected independently and randomly. Use a level of significance of a = 0.01. Ho: μι = μ2 = 13 H₁: At least two of the means differ from each other. 1. For this study, we should use Select an answer 2. The test-statistic for this data = 3. The p-value for this sample= 4. The p-value is Select an answer 5. Base on this, we should Select an answer 6. As such, the final conclusion is that... (Please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) α 8 5 7 8 6 hypothesis 805 O There is insufficient evidence to support the claim that employment status is a factor in the amount of sleep people get. O There is sufficient evidence to support the claim that employment status is a factor in the amount of sleep people get.
You wish to determine if there is a linear correlation between the two variables at a significance level of a = 0.05. You have the following bivariate data set. Round to three decimal places. What is the critival value for this hypothesis test? ± rc.v. X y 27.7 -18.1 21.2 70.8 25.1 12.4 26.8 4.6 15.8 113.3 24.3 72.4 30.5 11.3 13.2 182.8 r = = What is the correlation coefficient for this data set? Your final conclusion is that... There is sufficient sample evidence to support the claim that there is a statistically significant correlation between the two variables. There is insufficient sample evidence to support the claim the there is a correlation between the two variables.
At a .05 significance level with a sample size of 12, find the critical value for the correlation coefficient. (Just enter the positive value rounded to three places.)