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Ford Motor Company tracked 35 automobiles made in 1997 - they want to know whether or not they are still on the road 10 years later. Using the following data, construct, conduct and interpret a test to determine whether or not there is any difference in the final destination of each model of automobile. Interpret your findings.
Car Model Still on road In scrap yardTaurus 4 11Focus 9 3Mustang 7 1
An automobile company thinks that with new designs, it scars will last longer before having a problem. For this reason the company wishes to extend the warranty that comes with the vehicle in hopes of attracting more customers.
Then suppose that a sample of 4000 women had produced the sample mean 275, and again give the 95% confidence interval for the population mean. What can you say about the effect of sample size on confidence intervals?
The following data (in pounds), which were selected randomly from a normally distrubuted population of values, represent mearsurements of a machine part that is supposed to weigh, on average, 8.3 pounds.
A standard deviation of 68. a score is considered outstanding if it is at least 420. what is the % of the scores would be outstanding?
Give the Z- score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected
The average for the test is a 1700 and the population's standard deviation is 50. what percentile rank of students is Logan in based on her SAT score.
Does the normal distribution yield a good approximation of the actual results?
It is impossible to get a negative value for an F -ratio.
What is the chance that stock will fall by more than 15% next month? What extra assumption are you making when replying this question?
An electronic test equipment manufacturing company markets a certain piece of specialty equipment. The company has several competitors who currently market similar pieces of equipment.
Medical Red Blood Cell Volume. Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy adults, the red blood cell volume mean is about = 28ml/kg.
What is the probability that 6 or more claims are made by males under 25? (C) What is the expected number of claims made by males under 25? What is the standard deviation of the distribution?
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