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With more then a million teachers set to retire we are seeing a record number of turnovers in the teaching profession. In a time where student enrollments across America are increasing at a rapid place experts predict that we will need more then two million teachers over the next decade. Clearly define the dependent and independent variables for the shortage of teachers in the United States. The dependent variable is the variable whose value is the result or is a function of the control or independent variables.
Write the regression equation approximately. Computed the coefficient of determination(r 2 ).
How long do new batteries last on a camping trip? A random sample of n1 = 42 small camp flashlights were installed with brand I batteries and left on until the batteries failed.
In testing equality of two means below, determine the test statistic? (Use the equal variances formula)
Compute the range, variance, standard deviation, and coefficient of variation. Compute the Z scores. Are there any outliers?
The grade point average of the students at UTC is 2.80 with a standard deviation of 0.84. The grade point average of students at UTK is 2.4 with a standard deviation of 0.84. Which university shows a more dispersed grade distribution?
Compute the following linear programming problem and describe the special case of a linear programming problem in which.
Let X 1 , X 2 , X 3 , X 4 be a random sample from a Poisson distribution with parameter λ and let Y = X 1 + X 2 + X 3 + X 4 . You decide to test λ = 1.60 versus λ
Use value you found in part a to find out degree of confidence for interval 65.65
Construct a 95% confidence interval for the difference in the proportions of women and men who have regular exercise programs.
Determine fraction of employees cost between $1,500 and $2,000 per year?
Sixty-four students in an introductory college economics class were asked how many credits they had earned in college, and how certain they were about their choice of major.
Find out the operating characteristics for this system.
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