Answer:
40
Step-by-step explanation:
40x5=200
200 divided by 5 =40
Answer:
2341.78
Step-by-step explanation:
The number is already rounded to the nearest hundreth
Answer:
(115.2642, 222.7358).
Step-by-step explanation:
Given data:
type A: n_1=60, xbar_1=1827, s_1=168
type B: n_2=180, xbar_2=1658, s_2=225
n_1 = sample size 1, n_2= sample size 2
xbar_1, xbar_2 are mean life of sample 1 and 2 respectively. Similarly, s_1 and s_2 are standard deviation of 1,2.
a=0.05, |Z(0.025)|=1.96 (from the standard normal table)
So 95% CI is
(xbar_1 -xbar_2) ± Z×√[s1^2/n1 + s2^2/n2]
=(1827-1658) ± 1.96×sqrt(168^2/60 + 225^2/180)
= (115.2642, 222.7358).
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Answer:
=5.385 (must look at the requirement of the test as how many decimal...)
Step-by-step explanation:
the squared is equal to 29 means area=29
square has four side equal.
Area=side * side
