# Peggy

Member Since July 20, 2012

## Recent Activity by Peggy

A manager has to decide whether to accept (a1), further analyze (a2) or reject (a3) a lot of incoming material. Assume the following payoff table is available. Historical data indicates that there is ...

### Answered:Normal distribution and standard deviation

Thanks.

A brand of television has a lifetime that is normally distributed with a mean of 7 years and a standard deviation of 2.5 years. What is the probability that a randomly chosen TV will last more than 8 ...

### Asked:Normal distribution and standard deviation

A professor would like to use the normal distribution to assign grades such that 5% of students receive A's. If the exam average is 62 with a standard deviation of 13, what grade should be the cutoff ...

The metropolitan airport commission is considering the establishment of limitations on noise pollution. At the present time, the noise level per jet takeoff in one neighborhood near the airport is ...

An automotive center keeps track of customer complaints received each week. The probability distribtuion for complaints can be represented as a table or a graph, both shown below. The random ...

An inspector correctly identifies defective products 90% of the time. FOr the next 10 products, what is the probability that he makes fewer than 2 incorrect inspections? Round your answer to three ...

The production of a brand of toothpaste requires a fixed cost of \$480,000. The variable cost per unit is \$2.00. If 80,000 toothpastes will be sold during the next month, what sale price must be ...

Administrators at a university are planning to offer a summer seminar. It costs \$3,000 to reserve a room, hire an structor, and bring in the equipment. Assume it costs \$25 per student for the ...

Administrators at a university will charge students \$150 to attend a seminar. It costs \$3,000 to reserve a room, hire an instructor, and bring in the equipment. Assume it costs \$25 per student for ...

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