The department of labor would like to test the hypothesis that the average hourly wage for recent college graduates is less than $20. a random sample of 24 recent college graduates averaged $19.30 per hour with a standard deviation of $3.20 per hour. the department of labor would like to set ? = 0.10. use the critical value approach to test this hypothesis.

yes

step-by-step explanation:

yes

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis:

the answer is b

option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0