Complete parts (a) through (c) below. (a) determine the critical value(s) for a right-tailed test of a population mean at the α=0.01 level of significance with 15 ˚ of freedom. (b) determine the critical value(s) for a left-tailed test of a population mean at the α=0.10 level of significance based on a sample size of n=20. (c) determine the critical value(s) for a two-tailed test of a population mean at the α=0.05 level of significance based on a sample size of n=14.

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are

step-by-step explanation:

total income = price of one ticket   *   number of tickets sold

  y                 =     4                                   x

so the equation is y=4x     with x≥0   because number of tickets sold can not be negative

thus the equation is a semi -line with an end point at

(0,0)

passing through :

x=1     y=4(1) = 4   so through (1,4)

add a picture or measurements so i cab