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The following data show samples of three chain stores in three different locations in one town and the amount of dollars spent per customer per visit. At the 0.05 level, is there a difference in a
In a college 1/5th of the girs and 1/8 th of the boys took part in a camp. What fraction of the total no of students in the college took part in the camp. If the ratio of girls to the boys is 1: 2
Write out the payoff matrix for his game, and then find its Nash equilibrium.
Choose a variable and collect data for at least three different groups (samples). Compare the means of the three groups using the one-way ANOVA technique.
An electronics store sells an average of 60 entertainment systems per month at an average of $800 more than the cost price. For every $20 increase in the selling price,the store sells one fewer syst
You have a choice of borrowing money from a finance company at 24% compounded monthly or borrowing money from a bank at 26% compounded annually. Which alternative is the most attractive?
What do you conclude if 50,000 people respond to an NBC News survey in which TV viewers were asked to a call a toll-free number, and 67% oppose any restrictions on the Internet?
An aeroplane flies from A to B at the rate of 500km/hr and comes back from B to A at the rate of 700km/hr. What is the average speed of aeroplane?
A job only hires applicants who score 2 standard deviations or more above the mean on a skills test. If the mean is 77 and the standard deviation is 3, what score must you receive to be hired?
Question: A grocery store is hiring 5 new stock-persons for the summer. 19 equally qualified students apply for the job. In how many different ways can 5 students be hired.
Identify at least one example of probability encountered in everyday life. Explain how probability is used in that situation.
A researcher wants to estimate, at a 99% confidence level, the mean age of all persons who own sports cars. It is known that the standard deviation of the ages of all owners of spoert cars is 6 year
You have three pieces of string with lengths of 42 inches, 63 inches, and 77 inches. you need to cut pieces of equal length from these three pieces of string. How long should each piece be, and how
Of 1000 applicants for a mountain-climbing trip in the Himalayas, 450 get altitude sickness, 622 are not in good enough shape, and 30 have allergies.
If 2092 students have taken at least one of Spanish, French, and Russian, how many students have taken a course in all three languages?
In a survey of 270 college students, it is found that 64 like brussels sprouts, 94 like broccoli, 58 like cauliflower, 26 like both brussels sprouts and broccoli, 28 like both Brussels sprouts and c
Five cards are drawn from a standard 52-card playing deck. What is the probability that all 5 cards will be of the same suit?
Find the probability that an earthquake striking this region will Exceed 3.0 on the Richter scale. Fall between 2.0 and 3.0 on the Richter scale.
Ameesha drove car at 80 kmph and missed the flight by 5 min. If she drove at 100 kmph, she would have reached earlier by 10 min before the closing gates. How far is the airport from her house?
Find the standard deviation of Y= the length of life of a ramdom selected new drug. What is the probability that the value of Y falls in the interval µ+ 2σ?
A car averages 27 miles per gallon. If gas costs $4.04 per gallon, which of the following is closest to how much the gas would cost for this car to travel 2,727 typical miles?
Assuming that the numbers you received were generated at random, what are your expected winnings from the lottery? Is it worth 33 cents to enter this lottery?
Assuming that the attendant parks the cars at random, what is the probability that the three expensive sports cars are parked adjacent to one another?
Two cars leave towns 1000 kilometers apart at the same time and travel toward each other. One car's rate is 14 kilometers per hour less than the other's. If they meet in 5 hours, what is the rate of
Find the mean patent life for a new drug. Find the standard deviation of Y= the length of life of a ramdom selected new drug.