Example of a situation where a data set might be negatively skewed. Do the same for a positively skewed distribution.

Example of a situation where a data set might be negatively skewed. Do the same for a positively skewed distribution. As this is a discussion, check the other answers first to make sure your answer isn't already taken. If necessary, explain why the skews might be the way they are.

Expert Solution

orchestra answered 2 years ago

Are these data skewed to the left (negatively skewed) or skewed to the right (positively skewed)?...

Are these data skewed to the left (negatively skewed) or skewed to the right (positively skewed)? 1, 2, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 9, 1850

For the following data sets, are the samples positively skewed, negatively skewed or approximately symmetric? (You...

For the following data sets, are the samples positively skewed, negatively skewed or approximately symmetric? (You can use R to justify your answer.) (a) A = {0.9961905,0.9493184,0.8332006,0.9513567,0.9856061,0.9136707,0.9706223, 0.6834221, 0.8527071, 0.8052218, 0.9798628, 0.9862662}. (b) B = {0.256907054,0.371948965,0.302661234,0.245459145,0.488603820,0.435416721, 0.203228122, 0.004436282, 0.115262446, 0.058988085, 0.256066243, 0.141507075}. (c) C = {0.139061819,0.025883617,0.096332657,0.115620817,0.274004925,0.059080122, 0.072580116, 0.008576388, 0.068673036, 0.379232748, 0.117313230, 0.086692960}.

The distribution of the prices of new phone is positively skewed with a long tail to...

The distribution of the prices of new phone is positively skewed with a long tail to the right, in a random sample of people who have purchased a new phone, a mean and standard deviation price of a new phone is reported to be $400 and $50 respectively. What is the standard deviation of price of a new phone costing $500 in this distribution? Please indicate the standard deviation with the sign (negative and positive) and in the unit as...

(6) 2. A data set has a distribution that is skewed left with a mean of...

(6) 2. A data set has a distribution that is skewed left with a mean of 88 and a standard deviation of 22. I take 30,000 samples each of size 20 from this data set. Then the sampling distribution of sample means will have a) Mean = _______ b) standard deviation = ____________ c) What shape distribution? __________ (8) 3. The number of miles driven on trips for Thanksgiving is normally distributed with a mean of 120 miles and a...

How do emotions positively & negatively effect negotiations?

Consider the variable age for the population of US residents. Is this distribution positively or negatively...

Consider the variable age for the population of US residents. Is this distribution positively or negatively skewed? Explain.

The mean amount of life insurance per household is $122,000. This distribution is positively skewed. The...

The mean amount of life insurance per household is $122,000. This distribution is positively skewed. The standard deviation of the population is $42,000. Use Appendix B.1 for the z-values. a. A random sample of 60 households revealed a mean of $127,000. What is the standard error of the mean? (Round the final answer to 2 decimal places.) Standard error of the mean ? b. Suppose that you selected 127,000 samples of households. What is the expected shape of the distribution...

The mean amount of life insurance per household is $111,000. This distribution is positively skewed. The...

The mean amount of life insurance per household is $111,000. This distribution is positively skewed. The standard deviation of the population is $39,000. Use Appendix B.1 for the z-values. a. A random sample of 40 households revealed a mean of $115,000. What is the standard error of the mean? (Round the final answer to 2 decimal places.) Standard error of the mean b. Suppose that you selected 115,000 samples of households. What is the expected shape of the...

The mean amount of life insurance per household is $110,000. This distribution is positively skewed. The...

The mean amount of life insurance per household is $110,000. This distribution is positively skewed. The standard deviation of the population is $40,000. Use Appendix B.1 for the z-values. a. A random sample of 50 households revealed a mean of $112,000. What is the standard error of the mean? (Round the final answer to 2 decimal places.) Standard error of the mean b. Suppose that you selected 50 samples of households. What is the expected shape of the...

The mean amount of life insurance per household is $121,000. This distribution is positively skewed. The...

The mean amount of life insurance per household is $121,000. This distribution is positively skewed. The standard deviation of the population is $35,000. Use Appendix B.1 for the z-values. a. A random sample of 55 households revealed a mean of $124,000. What is the standard error of the mean? (Round the final answer to 2 decimal places.) Standard error of the mean b. Suppose that you selected 124,000 samples of households. What is the expected shape of the...

Question