Does 10k running time increase when the runner listens to music? Nine runners were times as they ran a 10k with and without listening to music. The running times in minutes are shown below. With music 50, 51, 42, 53, 37, 42, 51, 52, 53
Without music 51, 51, 33, 46, 44, 51, 51
Assume a Normal distribution. What can be concluded at the a = 0.10 level of significance? For the study we should use?
H0:
H1:

they do take longer listening to music because the 3rd guy takes longer than what he does without music and the rest do too

Step-by-step explanation:

compare them

third guy with music 42 and now without the music   33

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !

27/4x^6 y^8

step-by-step explanation:

4(3x^2y^4)^3 (2x^3y^5)^4

=

108x^6 y^12 /16x^12 y^20

=

108 /16x^6 y^8

=

27 /4x^6 y^8