Biology teacher claims that average
A biology teacher claims that average on her last test was 74. The scores of 12 students are as follows:
78, 82, 90, 65, 81, 66, 72, 55, 58, 70, 74, 85.
At the 0.01 level of significance, is her claim correct?
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The rancher has 1200 feet of fencing to enclose 2 adjacent rectangular corrals of equal lengths and widths. State the area, A, of two rectangles as the function of width, x.
Is there sufficient evidence, at the 0.01 level of significance to support EPA's claim? Please show all work.
For given graph of y = 1/2x and rotate it 45 degrees about origin, determine equation of image, domain, range and equations of asymptotes.
The volume of the conical pile of sand is increasing at the rate of 9p ft3 / min, and height of pile always equals radius r of base. State r as the function of time t (in minutes), suppose that r = 0 when t = 0.
If the parabola and ellipse both had the focus at (3,0), and vertex of parabola and one end point of major axis of ellipse are both at (5,0).
Pizza Inn wanted to determine what proportion of its customers ordered only cheese pizza. Out of 90 customers, 11 ordered cheese pizza. What is the 98% confidence interval of the true proportion of customers who order only cheese pizza. Interpret
A score of 85 is earned on a test in which mean=100 and S=15. An equivalent score on a scale where mean=50 and S=10 is?
Find dimensions of rectangle? Determine maximum area if they use house as one of sides? Find dimensions of rectangle?
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