2-E2. As in 2-E1, there were 1241 apartments that sold in a certain area in 2002,...
2-E2. As in 2-E1, there were 1241 apartments that sold in a certain area in 2002, the mean price is $459,000 and the standard deviation is $76000. A particular apartment has a z-score of 3.78. What did it sell for?
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2-E2. As in 2-E1, there were 1241 apartments that sold in a
certain area in 2002,...
In a certain section of Southern California, the distribution of monthly rent for a one-bedroom apartment...
In a certain section of Southern California, the distribution of monthly rent for a one-bedroom apartment has a mean of $2,175 and a standard deviation of $250. The distribution of the monthly rent does not follow the normal distribution. In fact, it is positively skewed. What is the probability of selecting a sample of 70 one-bedroom apartments and finding the mean to be at least $2,115 per month? (Round your z values to 2 decimal places and final answer to...
For a certain law school, the entering students have an average LSAT score of about 700...
For a certain law school, the entering students have an average LSAT score of about 700 with a standard deviation of about 40. The smoothed density histogram of the LSAT scores appears to follow a normal distribution. Sketch a smoothed density histogram (a bell-shaped curve) of the distributions for the LSAT scores. (For this problem, draw this on your own paper. You will not need to submit this graph.) Because this distribution is approximately normal, the mean is equal to...
(2 points) For students in a certain region, scores of students on a standardized test approximately...
(2 points) For students in a certain region, scores of students on a standardized test approximately follow a normal distribution with mean u = 543.4 and standard deviation o = 26.9. In completing the parts below, you should use the normal curve area table that is included in your formula packet. (a) What is the probability that a single randomly selected student from among all those in region who took the exam will have a score of 548 or higher?...
show your work please 7.) The cost of homes in the East Los Angeles area is...
show your work please
7.) The cost of homes in the East Los Angeles area is found to be normally distributed witha mean of $350,000 with a standard deviation of $75,000? What can be said about homes that cost $200,000 or more in the greater Los Angeles Area? GC-4 8.) Notation. Do not state the name. State what it represents in Statistics b. s a. N: c. d. n e. f 9) Use z-score to answer the following a. In...
12. A certain group of test subjects had pulse rates with a mean of 84.484.4 beats...
12. A certain group of test subjects had pulse rates with a mean of 84.484.4 beats per minute and a standard deviation of 11.211.2 beats per minute. Use the range rule of thumb to identify the limits separating values that are significantly low or significantly high. Is a pulse rate of 56.856.8 beats per minute significantly low or significantly high? Significantly low values are nothing beats per minute or lower. (Type an integer or a decimal. Do not round.) 14....
A study on salaries of recent graduates from a certain college are normally distributed with mean...
A study on salaries of recent graduates from a certain college are normally distributed with mean and standard deviation . Use the information to answer questions #1-6. You may use manual, technology, or table for computation, but you need to show work to justify your computation. 1. Suppose your starting salary is $55,000. a. determine the z-score b. interpret your z-score in terms of percentile (ranking) in the context of the population. 2. Find proportion for which the salary of...
In a recent study, the distances of certain raptor nests to the nearest marshland were studied....
In a recent study, the distances of certain raptor nests to the nearest marshland were studied. The study found that these distances are normally distributed with mean 4.42 km and standard deviation 0.86 km. Let Y be the distance of a randomly selected nest to the nearest marshland. Complete parts (a) and (b) Click here to view page 1 of the standard normal distribution table Click here to view page 2 of the standard normal distribution table. a. Determine P(Y...
Suppose that a random sample of ten recently sold houses in a certain city has a...
Suppose that a random sample of ten recently sold houses in a certain city has a mean sales price of $295,000, with a standard deviation of $14,000. Under the assumption that house prices are normally_distributed, find a 99% confidence interval for the mean sales price of all houses in this community. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to the nearest whole number. (If necessary, consult a list of...
Suppose that a random sample of nineteen recently sold houses in a certain city has a...
Suppose that a random sample of nineteen recently sold houses in a certain city has a mean sales price of $290,000, with a standard deviation of $13,000. Under the assumption that house prices are normally distributed, find a 90% confidence interval for the mean sales price of all houses in this community. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to the nearest whole number. (If necessary, consult a list...
In a certain section of Southern California, the distribution of monthly rent for a one-bedroom apartment has a mean of $2,175 and a standard deviation of $250. The distribution of the monthly rent does not follow the normal distribution. In fact, it is positively skewed. What is the probability of selecting a sample of 70 one-bedroom apartments and finding the mean to be at least $2,115 per month? (Round your z values to 2 decimal places and final answer to...
(2 points) For students in a certain region, scores of students on a standardized test approximately follow a normal distribution with mean u = 543.4 and standard deviation o = 26.9. In completing the parts below, you should use the normal curve area table that is included in your formula packet. (a) What is the probability that a single randomly selected student from among all those in region who took the exam will have a score of 548 or higher?...
show your work please
7.) The cost of homes in the East Los Angeles area is found to be normally distributed witha mean of $350,000 with a standard deviation of $75,000? What can be said about homes that cost $200,000 or more in the greater Los Angeles Area? GC-4 8.) Notation. Do not state the name. State what it represents in Statistics b. s a. N: c. d. n e. f 9) Use z-score to answer the following a. In...
In a recent study, the distances of certain raptor nests to the nearest marshland were studied. The study found that these distances are normally distributed with mean 4.42 km and standard deviation 0.86 km. Let Y be the distance of a randomly selected nest to the nearest marshland. Complete parts (a) and (b) Click here to view page 1 of the standard normal distribution table Click here to view page 2 of the standard normal distribution table. a. Determine P(Y...
Suppose that a random sample of ten recently sold houses in a certain city has a mean sales price of $295,000, with a standard deviation of $14,000. Under the assumption that house prices are normally_distributed, find a 99% confidence interval for the mean sales price of all houses in this community. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to the nearest whole number. (If necessary, consult a list of...
Suppose that a random sample of nineteen recently sold houses in a certain city has a mean sales price of $290,000, with a standard deviation of $13,000. Under the assumption that house prices are normally distributed, find a 90% confidence interval for the mean sales price of all houses in this community. Then complete the table below. Carry your intermediate computations to at least three decimal places. Round your answers to the nearest whole number. (If necessary, consult a list...
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