Aresearcher measures the mean time (in seconds) it takes two groups of children to complete an activity test. she finds that group a (m=4 seconds) compleated the task more quickly than group b (m=10 seconds). she then computes a weighted mean for both groups combined and calculates= 6. based on the information provided, which group had a larger sample size?

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!

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step-by-step explanation:

10 b/c 5*2 =10

step-by-step explanation:

step-by-step explanation: