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Researchers wanted to determine if carpeted rooms contained more bacteria than uncarpeted rooms. To determine the amount of bacteria in a room
An investigator analysing the relationship between food expenditure, disposable income and prices in the US using annual data over the period 1959-83
A single die is thrown. If the outcome is a 2 or a 3, then player A pays player B $6.00. How much should B pay A when a 1, 4, 5, or 6 is thrown.
For the following sequence: 2,4,7,3,9,4,7,11 find the range, mode, median, mean, IQR, standard deviation, variance and whether it is normally distributed
Scenario: You are interested in researching a new ambulance dispatching method. The new method is supposed to be more efficient
There is a very famous distribution that describes the frequency of the number of times a number comes up in a series of dice rolls, what is its name?
In 280 trials with a professional touch therapist, correct responses to a question were obtained 1223 times
A light Bulb manufacturer tests a light bulb by letting it burn until it burns out. The experiment consists of observing how long (in hours) the light bulb burn
Let X denote the number of boys in a family with four children. Pr(X > 3) is?
A bank manager has developed a new system to reduce the time customers spend waiting for teller service during peak hours
Addie, who is blindfolded, selects a box at random and draws one envelope from the box. The envelope contains a $5 bill.
Quart cartons of milk should contain at least 32 ounces. A sample of 22 cartons contained the following amounts in ounces.
A hand of 5 cards contains 2 red cards and 3 black cards. Trish plays the following game: A card is drawn from the hand.
What is the maximum that Ernesto should be willing to pay to play this game if he wants to be sure that on average, if he plays very many times.
A coin is tossed 3 times. Discrete random variable X is equal to the number of times Heads comes up. Discrete random variable Y has the value 1.
If you were to buy one ticket per week, approximately how long should you expect to wait before winning a prize?
Scenario: The manager of a package courier service believes that packages shipped at the end of the month are heavier than those shipped early in the month
Describe how the results from part (b) could have alternatively been determined by considering an appropriate decomposition of the original Poisson process.
Three assembly lines are used produce a certain component for an airliner. A random sample of six hourly periods are chosen for each assembly line
Simple spreadsheet compiled about the 21 commercial aircraft accidents in the US since 1972 that have at least one survivor and one death.
The probability of a bit error in a memoryless binary symmetric communication channel is 10^-3. Find the probability of a block of 1000 bits has five.
On the average, how much time will a family spend on the list before obtaining housing (either public or private)?
If the accountant had to collect receivables twice a year, construct a tree diagram to show the number of different levels of punctuality clients could display.
The data should be explained in narrative form including what (of importance) was or was not statistically significant.
Event A is the Cup was decided on the first round; event M is Montreal won the Cup. Are these events independent? If not, what is P(M|A)?