Donna and Sherman Terrel are preparing a budget for 2003. Donna is a systems analyst with an airplane manufacturer, and Sherman is working on a master's degree in educational psychology. The Terrels do not have any children or other dependents. Donna estimates her salary will be about $36,000 in 2003; Sherman expects to work onl
Find the percent of the area between the mean and 1.64 deviations from the mean.
An airline company knows that over the long run, only 90% of passengers who reserve seats show up for their flight. On a flight with 300 seats, the airline accepts 324 reservations. Assume the passengers show up independently. 1. Give the upper bound on the probability that the flight will be overbooked (more than 300 peop
Find the area under the normal curve for the condition. Find the percent of the area between the mean and 3.01 deviations from the mean.
A random sample of 41 basketball players from The Official NBA Basketball Encyclopedia gave the sample standard deviation for player height as s = 3.32 inches. How many more players from this encyclopedia should be included in the sample to be 95% sure that the sample mean is within 0.75 inches of the population mean of all play
According to a well-known newspaper journal, 58.3% of the 222,900 households in a particular county get the Sunday edition of the local newspaper. Suppose that random samples of 200 households are selected. In what proportion of the samples will between 55% and 60% of the households get the Sunday edition of the newspaper?
What is the difference in the average daily hotel room rates between Minneapolis and New Orleans? Suppose we want to estimate this difference by taking hotel rate samples from each city and using a 98% confidence level. The data for such a study follows. Use this data to produce an interval estimate and also a point estimat
Suppose that the height of a man is normally distributed with a mean of 5'9" (69") and a standard deviation of 2". Find the minimum height of the ceiling of an airplane, such that at most 2% of the men walking down the aisle will have to duck their heads? A. Define the random variable? B. List the parameters for the distribut
Please use MINITAB to solve or explain how I can use MINITAB to solve. 7. Assume that the midterm's scores X are normally distributed. Let X have a mean of 72 and a standard deviation of 12. Then answer the following three questions: a. What is the probability of obtaining a score at least 90? b. What is the probabil
I need an overview of how probability works, how to determine if it is a p^ problem or a normal distribution
QUESTION: Example: Family incomes in two particular neighborhoods follow a normal distribution. For Neighborhood 1 the mean is $26,500, with a standard deviation of $15,000. For Neighborhood 2, the mean is $30,000 with a standard deviation of $18,000. A) What proportion of families in Neighborhood 1 have incomes below the
A 56-question multiple choice test has 4 possible answers for each question and a student chooses the answers to each problem at random. A student selects 16 correct answers. Find the probability of the result using the normal curve approximation to the binomial distribution.
Scores on a college admissions exam are normally distributed with mean score 642 and standard deviation 76. The college wants to set the passing score so that only the best 10% of all applicants pass. what is the passing score?
A sample of 100 is taken from a population which has a normal distribution with a mean of 80 and a standard deviation of 40. What is the probability that the sample mean is between 74 and 81 is?