9. Which one of the following dealt with
1 answer:
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Answer:
<em>8,748 </em>
Step-by-step explanation:
f(x) =
<em>f(6)</em> = = 12 × 9³ = 12 × 729 = <em>8,748</em>
Answer:
The population mean is 5 volts
Step-by-step explanation:
Output voltage is assumed to be normally distributed, with standard deviation 0.25 Volts
s=0.25
n = 8
Sample mean =
Since n < 30 and population standard deviation is unknown
So, we will use t test
Formula :
t=-1.69
Refer the t table for p value
Degree of freedom = n-1 = 8-1 = 7
So,
P value >α
So, We are failed to reject null hypothesis
Hence The population mean is 5 volts