Answer:
98% Confidence interval: (26.939,42.461)
Step-by-step explanation:
We are given the following in the question:
Sample mean, 
= 34.7 bushels per acre
Sample size, n = 9
Alpha, α = 0.05
Sample standard deviation, s = 8.04 bushels per acre
Degree of freedom = n - 1 = 8
98% Confidence interval:
Putting the values, we get,
is the required confidence interval for the true mean yield.
Answer:
1). 0.1667
2). 0.3333
3). 0.3333
Step-by-step explanation:
1). Probability that the student was female and got a 'B'
= 
= 
= 0.1667
2). Probability that the student was male and got an 'A'
= 
= 
= 
= 0.3333
3). Probability that the student got a B = 
=
=
= 0.3333
60% of the astronomy club is male and 40% is female
Find the similarity ratio from the other two sides.
AC ~ DF
and
BC ~ EF
AC = 12
DF = 36
36 ÷ 12 = 3
BC = 9
EF = 27
27 ÷ 9 = 3
Ratio similarity scale is, 1 : 3
We have AB ~ DE
AB = x
DE = 24
24 ÷ x = 3
24 ÷ 3 = x
8 = x
The value of x is 8
