Chapter 2.6, Problem 2DQ

13. Let f be the function defined by Find f (-1), f (0), ƒ (1) and ƒ (2). Answer f(x) = .2 J-x² +3 if x <1 2x²+1 2x²+1 if x ≥ 1

Λ Content Mind Tap - Cengage Learning × Function Evaluations x + c/nb/ui/evo/index.html?elSBN 9780357038406&id=339416021&snapshotld=877369& GAGE MINDTAP ons, Limits, and the Derivative 14. Let f be the function defined by Find f (0), f (1), and f (2). 2+1 x if x 1 if x 1 f(x) = 1 1-x

A Content c/nb/ui/evo/index.html?elSBN 9780357038406&id=339416021&snapshotld=877369& GAGE MINDTAP ons, Limits, and the Derivative 11. Let f be the function defined by Find f (-2), f (0), and f (1). Answer f(x) = [ x² + 1 if x ≤ 0 if x > 0

Solve the given differential equation by using an appropriate substitution. The DE is a Bernoulli equation. dy dx  = y(xy4 − 1)

Give the largest interval over which the general solution is defined. (Think about the implications of any singular points. Enter your answer using interval notation.)    Find the general solution of the given differential equation. x2y' + xy = 4 y(x) = ?   Give the largest interval over which the general solution is defined. Determine whether there are any transient terms in the general solution.

4.7.4. A die was cast n 120 independent times and the following data resulted: 2 Spots Up 1 3 4 5 Frequency b 20 20 20 20 6 40-b If we use a chi-square test, for what values of b would the hypothesis that the die is unbiased be rejected at the 0.025 significance level?

Please help me with this statistics question

Please help me with the following statistic question

To  evaluate  the  success  of  a  1-year  experimental  program  designed  to  increase  the  mathematical achievement of underprivileged high school seniors, a random sample of participants in the program will be selected and their mathematics scores will be compared with the previous year’s  statewide  average  of  525  for  underprivileged  seniors.  The  researchers  want  to  determine  whether the experimental program has increased the mean achievement level over the previous year’s statewide average. If alpha=.05, what sample size is needed to have a probability of Type II error of at most .025 if the actual mean is increased to 550? From previous results, sigma=80.