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Compute the correlation and sample covariance.
A data set contains the height (Y1) and the volume (Y2) of 3 black berry trees, and the observations are (75; 18.2); (80; 22.6); (75; 19.9):
1. Intuitively, what kind of correlation between Y1 and Y2 do you expect? Positive, negative or zero?
2. Compute the sample covariance and the sample correlation.
Find out the critical value for the given degrees of freedom of the F-test also the lower-tailed critical value of F test for the similar level of significance
The chance both flights are full is 0.6. Are the two flights being full independent events and What was the mean ranking for the females in this class
Events A and B are mutually exclusive events defined on common sample space. If P (A) 0.5 and P (A or B) = 0.70, determine P (B).
If the sample standard deviation of the sample was $630 also the sample size was 50. Findout the 90% confidence interval of true mean.
When would you use hypothesis testing and when would you use confidence intervals?
Are number of toilet breaks and amount of beverage consumed related? Describe how? Provide the value of statistic and probability value.
At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations.
Find the area under the normal distribution curve to the right of z = -1.03.
Determine mean and standard deviation for number of erroneous returns per batch.
Construct the 90% and 95% interval estimates for the population mean weekly sales.
A manufacturer of billiard balls is testing three additives to the basic plastic. Show the partial ANOVA table
The Minitab output for the Tukey Least Significant Difference multiple comparisons is below. Which means are different and similar
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