Anational firm reports mean earnings of $75 ± $12 (µ ± σ) per unit sold over the lifetime of the company. a competing company over the past 36 reporting periods had reported mean earnings equal to $78 per unit sold. conduct a one-sample z test to determine whether mean earnings (in dollars per unit) are larger (compared to that reported by the national firm) at a .05 level of significance. 1. state the value of the test statistic and whether to retain or reject the null hypothesis. 2. compute effect size using cohen’s d.

828. all there is to it!

here, if you ever need with rounding (or other forms of arithmetic/math) again, use this:

thats the rounding one, but if you just click the top left, it shows you all the calculators you may need!

u bout ugly as   a mf

step-by-step explanation: lol

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d

answer: group b.

step-by-step explanation: