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Perform the following hypothesis tests on the data in spreadsheet. State the conclusion of the hypothesis tests. The level of significance is 0.05 in each test.
Suppose that a probability distribution has a mean 20 and standard deviation 3. The Chebychev inequality states that the probability that an outcome.
On three rolls of a single die you will lose $10 if a 5 turns up at least once, and you will win $7 otherwise. What is the expected value of the game?
Annie and Alvie have agreed to meet between 5:00 pm and 6:00 pm for dinner at a local health food restaurant.
In a market test of a new chocolate raspberry coffee, a poll of 400 people from Dobbs Ferry showed 250 preferred the new coffee.
If each Senior is equally likely to win each challenge, what is the Probability that Hank, one of the Seniors, will win at least one challenge?
It is believed that most actively managed funds fail to outperform the overall market.
A hand of 4 cards contains one card of each suit ( I,e., one Heart, one Diamond, One Club and one spade).
A single die is rolled once. You lose $12 if a number divisible by 3 turns up. How much should you win if a number not divisible by 3 turns up.
Researchers wanted to determine if carpeted rooms contained more bacteria than uncarpeted rooms. To determine the amount of bacteria in a room
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