Mathematics, 05.05.2020 04:23 dogeking12
A sample of 6 observations collected in a regression study on two variables, x(independent variable) and y(dependent variable). The sample resulted in the following data. SSR=60, SST=89, summation (x_i-xbar)2=28, summation (x_i-xbar)(y_i-ybar)=45.Calculate the t test statistics to determine whether a statistically linear relationship exists between x and y.
Answers: 3
Mathematics, 21.06.2019 15:30
Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.
Answers: 2
Mathematics, 21.06.2019 16:50
Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?
Answers: 3
Mathematics, 21.06.2019 22:20
The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22
Answers: 1
A sample of 6 observations collected in a regression study on two variables, x(independent variable)...
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