Answer:
z-test.
Step-by-step explanation:
We want to perform an hypothesis test for a population mean.
In the case that the <u>standard deviation of the population is known</u> and the population distribution is normal, even if the sample is small, <u>we will use a z-test</u>.
The usual case is to not know the standard deviation of the population, in which case a t-test is adequate instead of a z-test, taking into account the degrees of freedom of the sample.
Answer:
Ella takes 3/5 hours
Holly takes 1 3/5 hours = 8/5 hours
She takes 3/4 * (Ella's time). (ATQ)
= 3/4 * 8/5
= 24/20
Time taken by Holly to complete 5 paintings
= Time taken in 1 painting * 5
= 24/20 * 5
= 24/4
= 6 hours
You didnt even put the whole question there
The answer is 110 degrees.
Hope it helps!
Answer:
Basically if you look at the lemonade the bar stops at 12
and for the water the bar stops between 6 and 8 which is 7
and the question says how many more which is minus so
The number of lemonades - the number of water sold=
12-7=5
