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Scientist does n ot believe that water ph is 7. She wants to test the null hypothesis that the true level of ph is 7 at the .05 significance level. Her alternative hypothesis is that the water does not have a ph of 7. Which p-value will she reject the null hypothesis?
Select a US citizen and a citizen of China at random, independently of one another. Determine the probability that both have type O blood?
The variable recorded for each subject was the number of additional yards (possibly negative) that the subject could drive the ball by the end of the season. In the two-way ANOVA the DFM
Consider the following continuously operation job shop. Inter arrival times of jobs are described as follows: What is the average time for the 10 new jobs?
Use alpha level. 05 to compute and interpret Pearson's r and to test whether it is important (using all your steps for hypothesis test).
One should never use a regression line to predict the dependent response variable when the independent value is outside of the data range of the original data set that was used to fit the line.
Fit a linear regression model for bp against sodium. Do you think this is a model with a good fit? Why?
The theory underlying inferential statistics and other theoretical aspects are subjects we do not often consciously think about in our daily activities.
The following data represents the running time of films produced by 2 motion picture companies. Assume these are independent samples
At a certain university, the average cost of books per student was 400.00 last semester. In a sample of 40 students this semsester, their average cost was 340.00 with a standard deviation of 80.00.
Use the permutations rule to determine the total number of different ways the winners can be drawn.
What is the relationship between the sign of the correlation coefficient and the sign of the slope of the regression line?
In a test of the MicroSort method of gender selection, 51 babies are born to couples trying to have baby boys, and 39 of those babies are boys (based on data from the Genetics & IVF Institute).
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