The company produces batteries. It is evaluated that 5% of batteries produced are defective. The random sample of 145 is selected from the large lot of batteries produced by company.
1. Determine the mean?
i. 6.8875
ii. 7.2500
iii. 7.7000
iv. 137.75
2. Compute standard deviation?
i. 2.6244
ii. 2.6926
iii. 6.8875
iv. 7.2500
3. Determine probability of least one defective battery in the sample?
i. .3106
ii. .5987
iii. .4013
iv. .5643