Answer:
The answer is false
Step-by-step explanation:
In a sample above 30 obs like this the confidence interval is defined as
X+- t* (s/sqrt(n)) where X is the mean t the tvalue for a given confidence level, n the size of sample and s standar deviation.
To find de appropiate value of t we must see the T table where rows are degrees of freedom and columns significance level
The significance is obtained:
significance = 1 - confidence level = 1 - 0.9 = 0.10
Degrees of freedom (df) for the inteval are
df = n - 1 = 18 - 1 = 17
So we must look for the value of a t with 17 values and significance of 0.10 which in t table is 1.740 not 1.746 ( thats the t for 16 df)
Answer:
thay both are the same shape and size
Step-by-step explanation:
Answer:
The answer is C
Step-by-step explanation:
got it right on edge
Answer:
while installing a window in an older home, you find that the measurements are not square and will need to shim one side. you find a packet of shims that have 0.25 inch marked on the outside of the wrapper. What fraction of an inch is 0.25, reduce to its lowest terms 0.30
Step-by-step explanation:
Answer:
Your friend complete 1 level per 9 hours.
You complete 5 levels in 45h so you get 1 lv per 9h 45/9=5
