If we are considering a population that is approximately normal and we choose the sample size...
If we are considering a population that is approximately normal and we choose the sample size of n = 3, what is likely true about the shape of the sampling distribution of the sample mean?
a)The shape of the sampling distribution of the sample mean is skewed left because the sample size is less than 30.
b)The shape of the sampling distribution of the sample mean is skewed right because the sample size is less than 30.
c)The shape of the sampling distribution cannot be determined because the sample size is less than 30.
d)The shape of the sampling distribution of the sample mean is approximately normal because the population is normal.
Homework Answers
d)The shape of the sampling distribution of the sample mean is approximately normal because the population is normal.
option d) is correct
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If we are considering a population that is approximately normal
and we choose the sample size...
Complete parts (a) through (d) for the sampling distribution of the sample mean shown in the...
Complete parts (a) through (d) for the sampling distribution of the sample mean shown in the accompanying graph. Click the icon to view the graph. (a) What is the value of w;? The value of n; is (b) What is the value of o:? The value of ozis (c) the sample size is n=9, what is likely true about the shape of the population? O A. The shape of the population is skewed right. OB. The shape of the population...
A random sample of size 36 is taken from a population with a mean of 50...
A random sample of size 36 is taken from a population with a mean of 50 and a standard deviation of 5. The sampling distribution of ________. A. cannot be determined B. is skewed to the right C. is skewed to the left D. is approximately normal
A report announced that the median sales price of new houses sold one year was $221,000,...
A report announced that the median sales price of new houses sold one year was $221,000, and the mean sales price was $272,400. Assume that the standard deviation of the prices is $100,000. Complete parts (a) through (d) below. if you select samples of n=2, describe the shape of the sampling distribution of X Choose the correct answer below. A. The sampling distribution is skewed to the right (because population was skewed to the right), but less skewed to the...
Suppose that a simple random sample of n = 6 individuals is obtained from a population...
Suppose that a simple random sample of n = 6 individuals is obtained from a population that is skewed right with mean u = 44 and standard deviation o =2. (a) The shape of the sampling distribution of the sample mean is approximately normal. Is this true or false? (b) What is the mean of the sampling distribution of the sample mean? (c) What is the standard deviation of the sampling distribution of the sample mean? (a) Choose the correct...
A simple random sample of size nequals 81 is obtained from a population with mu equals...
A simple random sample of size nequals 81 is obtained from a population with mu equals 73 and sigma equals 9 . ?(a) Describe the sampling distribution of x overbar . ?(b) What is Upper P left parenthesis x overbar greater than 74.35 right parenthesis ?? ?(c) What is Upper P left parenthesis x overbar less than or equals 70.7 right parenthesis ?? ?(d) What is Upper P left parenthesis 72.3 less than x overbar less than 74.85 right parenthesis...
Complete parts (a) through (d) for the sampling distribution of the sample mean shown in the...
Complete parts (a) through (d) for the sampling distribution of the sample mean shown in the accompanying graph. Click the icon to view the graph. (a) What is the value of us? The value of his (b) What is the value of 0;? The value of oz is (c) If the sample size is n=16, what is likely true about the shape of the population? OA. The shape of the population is approximately normal. B. The shape of the population...
If a population is known to be normally distributed with size 25 selected from the population?...
If a population is known to be normally distributed with size 25 selected from the population? 89 and 15, what will be the characteristics of the sampling distribution for x based on a random sample of - 89 (Type an integer or a decimal.) - 3 (Type an integer or a decimal.) Describe the sampling distribution of the sample. Choose the correct answer below O O A. The sampling distribution is skewed right because the population is normally distributed and...
Suppose a simple random sample of size nequals=81 is obtained from a population with mu equals...
Suppose a simple random sample of size nequals=81 is obtained from a population with mu equals 84μ and sigma equals 27σ. (a) Describe the sampling distribution of x overbarx. (b) What is Upper P left parenthesis x overbar greater than 88.05 right parenthesisP x>88.05? (c) What is Upper P left parenthesis x overbar less than or equals 78 right parenthesisP x≤78? (d) What is Upper P left parenthesis 81 less than x overbar less than 90.3 right parenthesisP 81<x<90.3? (a)...
Describe the sampling distribution of ModifyingAbove p with caret. Assume the size of the population is...
Describe the sampling distribution of ModifyingAbove p with caret. Assume the size of the population is 20,000. n=500, p=0.2 Choose the phrase that best describes the shape of the sampling distribution of ModifyingAbove p with caret below. A. Not normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p right parenthesis less than 10. B. Approximately normal because n less than or equals 0.05 Upper N and np left parenthesis 1 minus p...
A simple random sample of size n=81 is obtained from a population with u = 73...
A simple random sample of size n=81 is obtained from a population with u = 73 and o = 36. (a) Describe the sampling distribution of x. (b) What is P (x>77.6) ? (c) What is P (x565) ? (d) What is P (70.4 <x<81)? (a) Choose the correct description of the shape of the sampling distribution of x. O A. The distribution is skewed right. OB. The distribution is skewed left. OC. The distribution is approximately normal. D. The...
Complete parts (a) through (d) for the sampling distribution of the sample mean shown in the accompanying graph. Click the icon to view the graph. (a) What is the value of w;? The value of n; is (b) What is the value of o:? The value of ozis (c) the sample size is n=9, what is likely true about the shape of the population? O A. The shape of the population is skewed right. OB. The shape of the population...
A report announced that the median sales price of new houses sold one year was $221,000, and the mean sales price was $272,400. Assume that the standard deviation of the prices is $100,000. Complete parts (a) through (d) below. if you select samples of n=2, describe the shape of the sampling distribution of X Choose the correct answer below. A. The sampling distribution is skewed to the right (because population was skewed to the right), but less skewed to the...
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Complete parts (a) through (d) for the sampling distribution of the sample mean shown in the accompanying graph. Click the icon to view the graph. (a) What is the value of us? The value of his (b) What is the value of 0;? The value of oz is (c) If the sample size is n=16, what is likely true about the shape of the population? OA. The shape of the population is approximately normal. B. The shape of the population...
If a population is known to be normally distributed with size 25 selected from the population? 89 and 15, what will be the characteristics of the sampling distribution for x based on a random sample of - 89 (Type an integer or a decimal.) - 3 (Type an integer or a decimal.) Describe the sampling distribution of the sample. Choose the correct answer below O O A. The sampling distribution is skewed right because the population is normally distributed and...
A simple random sample of size n=81 is obtained from a population with u = 73 and o = 36. (a) Describe the sampling distribution of x. (b) What is P (x>77.6) ? (c) What is P (x565) ? (d) What is P (70.4 <x<81)? (a) Choose the correct description of the shape of the sampling distribution of x. O A. The distribution is skewed right. OB. The distribution is skewed left. OC. The distribution is approximately normal. D. The...
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