Step-by-step explanation:
13040000
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Answer is D.
Last one...
hope it helps
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)
-10(-12+30)
-10 multiplied by 18
-180
9514 1404 393
Answer:
Step-by-step explanation:
The number 2 1/4 is split into the sum 2 + 1/4, then multiplied by 3/8. This gives ...
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Of course, fractions are multiplied in the usual way:
