Post a New Question

statistics

posted by .

The lifetime of a 2- volt non- rechargeable battery in constant use has a normal distribution with a mean of 516 hours and a standard deviation of 20 hours. What is the z-score for batteries with lifetimes of 600 hours?

  • statistics -

    Use z-scores.

    Formula:
    z = (x - mean)/sd

    With your data:
    z = (600 - 516)/20

    I'll let you finish the calculation.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

More Related Questions

Post a New Question