Determine the critical values for these tests of a population standard deviation. (a) A right-tailed test with 15 degrees of freedom at the a = 0.01 level of significance
(b) A left-tailed test for a sample of size n=21 at the a = 0.05 level of significance
(c) A two-tailed test for a sample of size n=30 at the a=0.1 level of significance
Click the icon to view a table a critical values for the Chi-Square Distribution.
(a) The critical value for this right-tailed test is 30.578.
(Round to three decimal places as needed.)
(b) The critical value for this left-tailed test is I.
(Round to three decimal places as needed.)

circumference divided by 3.141592654 then timesthe radius twice

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

part d

step-by-step explanation:

theresa talked her parents into getting sd cards for her phone and her brother’s phone. inserting an sd card into a phone gives it more storage. they both get 8-gigabyte sd cards. how many bits of storage come with each sd card? type your answer in both scientific and standard notation.

c. side angle side. u shares the same sides

b. would be the answer : )

step-by-step explanation:

step 1: add -16x to both sides.

16x−4y+−16x=64+−16x  

−4y=−16x+64

step 2: divide both sides by -4.

−4y /-4 = -16x + 64/-4

answer:   y=4x−16

hope i'm right