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Suppose that the average number of airline crashes in a country is 2.5 per month.
Suppose that the average number of airline crashes in a country is 2.5 per month. (a) What is the probability that there will be at least 3 accident in the next month? probability = __?__ (b)What is the probability that there will be at least 6 accident in the next two month? probability = __?__ (c) What is the probability that there will be at most 5 accident in the next three month? probability = __?__
the us department of transportation reports that there are an average of 4 car crashes per minute between the hours of 3 and 6 pm the number of crashes per minute is poisson distributed. a) what is the probability of there being 0 crashes on any one minute period between 3 pm and 6 pm b) what is the probability there are 3 or more crashes in any given 1 minute period between 3 ad 6? c) what is standard...
Suppose that the average number of new clients that a sales representative signs in a month is 22 and that the distribution of this random variable is Poisson. What is the probability that any given sales representative will sign fewer than 15 new clients in a month?
3. Suppose that the average person in the world consumes 2.5 gallons of gas per day. If the price elasticity of demand is -0.4 and the price sharply increases from $2.50 per gallon to $3.00 per gallon, what happens to per capita demand?
An airline company would like to know if the average number of passengers on a flight in November is less than the average number of passengers on a flight in December. The results of random sampling are printed below. What is the correct null and alternate hypothesis? A. H0:mu1 = mu2 Ha:mu1 < mu2 B. H0:mu = 0 Ha:mu > 0 C. H0:mu = 0 Ha:mu not equal 0 D. H0:mu1 = mu2 Ha:mu1 not equal mu2
Suppose that the average number hours a student works out per week is 2.63 with a sample standard deviation of 2.52. Would it be unusual for a student to work out 8 hours a week? What about 0 times a week? Justify your answer using statistical reasoning.
Suppose that you are interested in estimating the average number of miles per gallon of gasoline your car can get. You calculate the miles per gallon for each of the next thirteen times you fill the tank. Suppose that in truth, the values for your car are bell-shaped, with a mean of 20 miles per gallon and a standard deviation of 1. Find the possible sample means you are likely to get based on your sample of thirteen observations. Consider...
Suppose during the next three decades, the average number of hurricanes per decade is as follows: 4, 6, and 8. Drawing on the statistical reasoning concepts in Huff and your weekly readings, compare and contrast these three decades to the previous 16 decades of hurricane data in Part 1. Answer the following questions. What are the 3 potential hypotheses when comparing these data to the previous 16 decades of hurricane data in Part 1. Which hypothesis can you accept? Why?...
suppose that the average number of credit hours that students take per semester is 16.3 hours (consider that to be the population mean). If 57.91% of students take less than 15.2 hours, find the standard deviation of credit hours for the population of students.
Egyptians watch an average of 2.5 hours of television per person per day. If the standard deviation is 1.6 hours and a random sample of 225 Egyptians is selected, the mean of this sample belongs to a sampling distribution. What is the standard deviation of this sampling distribution? o O 0.107 O 15.234 O 225 1.636