Suppose that the talk time on a fully charged iPhone is approximately normally distributed with mean 7 hours and standard deviation 0.8 hour. What is the probability that a random sample of 16 fully charged iPhones results in a mean talk time of less than 6 hours?
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
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![Suppose that the talk time on a fully charged iPhone is approximately normally distributed with mean 7 hours
and standard deviation 0.8 hour. What is the probability that a random sample of 16 fully charged iPhones
results in a mean talk time of less than 6 hours?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe2c40527-0098-40ed-acc6-c1b6f6530e04%2F1c3864a9-06a7-48ca-aef3-b3e70377307f%2Fpt0fk2.png&w=3840&q=75)
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