How many centimeters are in 20 miles
1 answer:
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Answer: we are 95% confident that the total number of defective bulb
contained in the 1000 boxes shipped by this company is between 195.5 and 644.5
Step-by-step explanation:
The sample size n = 50
The population size N= 1000
The number of defective in the sample is 21.
Sample mean x bar= 21/50
=0.42
The standard deviation (sigma) is = 0.81
Calculating the confidence interval
By checking the attached picture below.
