Answer:
29.5+/-1.11
= ( 28.39, 30.61)
Therefore, the 90% confidence interval (a,b) =( 28.39, 30.61)
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
x+/-zr/√n
Given that;
Mean x = 29.5
Standard deviation r = 5.2
Number of samples n = 59
Confidence interval = 90%
z-value (at 90% confidence) = 1.645
Substituting the values we have;
29.5+/-1.645(5.2/√59)
29.5+/-1.645(0.676982337100)
29.5+/-1.113635944529
29.5+/-1.11
= ( 28.39, 30.61)
Therefore, the 90% confidence interval (a,b) =( 28.39, 30.61)
Answer: If you want the answer then it is x=4
Step-by-step explanation:
Subtract 6 from both sides
2x=7x-20
subtract 7x on both sides
-5x=-20
Lastly divide both sides by the same term(-5)
x=4
Hope this helps and a brainliest would be appreciated
A. F
b. T
c. T
d. T
1.5 Acres 2 Acres
42.5 ( 1.5 ) + 15 = 78.75 | 42.5 ( 2 ) + 15 = 100
78.5 ( 1.5 ) + 5 = 122.75 | 78.5 ( 2 ) + 5 = 162
