Today a fifth grade class will explore all 36 fossil displays at the museum.they explore 4/9 of the displays in the morning. How
2 answers:
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In the complex plane, the two given points are represented by 
and 
. The midpoint would then be
which represents the complex number
.
which represents the complex number
Answer:
(351.04, 368.96)
Step-by-step explanation:
Given that population mean= 360
Std devitaion = 4
margin of error = 2.5%= 0.025
Since population std deviation is known we can use Z critical value
For two tailed critical value for 2.5% would be
2.24
Margin of error = ±Critical value*std deviation
= ±2.24(4)
= ±8.96
Confidence interval =(Mean - margin of error, mean + margin of error)
=