Answer:
option D is correct
Step-by-step explanation:
Hope it helps you
Answer:
test statistic, z = −1.74
Step-by-step explanation:
given data
students n = 100
mean time x = 41.13 seconds
σ = 5
we consider µ = 42
solution
we get here The test statistic that is express as
test statistic, z =
......................1
put here value and we will get
test statistic, z = \frac{41.13-42}{\frac{5 }{\sqrt{100}}}
test statistic, z = −1.74
Yes but I can’t really see it
answer is C
Step-by-step explanation:
i got it right and it looked like no one would help you so