use your calculator to find the equation of the regression line. write the equation in y=ax b form. do not use any spaces. round
a and b to the nearest tenth. weight height 99 61 104 61 110 62 133 64 130 65 142 68 146 66 153 67 184 69 185 70
1 answer:
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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