What is the standard deviation

Assignment Help Basic Statistics

Reference no: EM131009024

1. Grocery supplier

A grocery supplier believes that the mean number of broken eggs per dozen is 0.6, with a standard deviation of 0.5. You buy 3 dozen eggs without checking them.

a) How many broken eggs do you expect to get?

b) What's the standard deviation?

2. Is it necessary to assume the cartons of eggs are independent? Why?Commuting, part 2. A commuter finds that she waits an average of 14.8 seconds at each of five stoplights, with a standard deviation of 9.2 seconds. Find the mean and the standard deviation of the total amount of time she waits at all five lights. What, if anything, did you assume?

Reference no: EM131009024

Questions Cloud

What desirable attributes of shipping facilities plans : The average operator of a certain company performs at 100% (avenge path) and the tinge of performance is from about 60% to 140%, and the distribution is assumed to be oormaL Determine the station speed of the company's assembly line assuming that ..

Find the hydrostatic pressure on the bottom of the aquarium : Find the hydrostatic pressure on the bottom of the aquarium. Find the hydrostatic force on the bottom of the aquarium. Find the hydrostatic force on one end of the aquarium.

Why is the standard deviation so large : At a casino, people play the slot machines in hopes of hitting the jackpot, but most of the time, they lose their money. A certain machine pays out an average of $0.92 (for every dollar played), with a standard deviation of $120.

Repair calls-insurance company : Repair calls. A small engine shop receives an average of 1.7 repair calls per hour, with a standard deviation of 0.6. What is the mean and standard deviation of the number of calls they receive for an 8-hour day? What, if anything, did you assume?

What is the standard deviation : A grocery supplier believes that the mean number of broken eggs per dozen is 0.6, with a standard deviation of 0.5. You buy 3 dozen eggs without checking them. a) How many broken eggs do you expect to get? b) What's the standard deviation?

What would make a personality test reliable and valid : Have you ever taken a personality test before? If so, what was your reaction to the analysis? If not, what would you expect a proper test to measure? What would make a personality test reliable and valid

Problem regarding the battery recall : A company has discovered that a recent batch of batteries had manufacturing flaws, and has issued a recall. You have 10 batteries covered by the recall, and 3 are dead. You choose 2 batteries at random from your package of 10.

Outcomes of the two contract bids independent : Your company bids for two contracts. You believe the probability that you get contract #1 is 0.8. If you get contract #1, the probability that you also get con- tract #2 will be 0.2, and if you do not get contract #1, the probability that you get ..

Define and explain the nature of denial mechanism : Define and Explain the nature of this mechanism. Discuss a time when you may have used this mechanism. If you cannot do this, give an example of someone else using the mechanism, based on your own observations

User Account

All Pages