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A simple random sample of size n from a finite
population of size N is a sample selected such that each
possible sample of size n
A.
has the same probability of being selected
B.
has a probability of 1/n of being selected
C.
has a probability of n/(N-1) of being selected
D.
has a probability of 1/N of being selected
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A simple random sample of size n= 15 is drawn from a population that is normally distributed. The sample mean is found to be x = 22.8 and the sample standard deviation is found to be s = 6.3. Determine if the population mean is different from 25 at the a= 0.01 level of significance. Complete parts (a) through (d) below. (a) Determine the null and alternative hypotheses. Ho 25 H: V25 (b) Calculate the P-value. P-value = (Round to...
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A simple random sample of size n= 15 is drawn from a population that is normally distributed. The sample mean is found to be x=20.9 and the sample standard deviation is found to be s = 6.3. Determine if the population mean is different from 26 at the a = 0.01 level of significance. Complete parts (a) through (d) below. (a) Determine the null and alternative hypotheses. H: 726 (b) Calculate the P-value. P-value = (Round to three decimal places...
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A simple random sample of size n=15 is drawn from a population
that is normally distributed. The sample means found to be x=26.7
and the sample standard deviation is found to be s=6.3.Determine if
the population mean is different from 25 at the a=0.01 level of
significance.
A. Determine the null and alternative hypotheses.
B. Calculate the p value.
C. State the conclusion for the test. Choose from below:
a. Do not reject h0 because the P-value is less than...
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A simple random sample of size n 15 is drawn from a population that is normally distributed. The sample mean is found to be x 24.4 and the sample standard deviation is found to be s 6.3. Determine if the population mean is different from 26 at the 0.01 level of significance. Complete parts (a) through (d) below. (a) Determine the null and alternative hypotheses. ЕЕ (b) Calculate the P-value P.value Round to three decimal places as needed.) (c) State...
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A simple random sample of size n = 15 is drawn from a population that is normally distributed. The sample mean is found to be x=19.2 and the sample standard deviation is found to be s =6.3. Determine if the population mean is different from 25 at the c=0.01 level of significance. Complete parts (a) through (d) below. H: 1 25 (b) Calculate the P-value P-value (Round to three decimal places as needed.) Enter your answer in the answer box...
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Suppose that a random sample of size 1 is to be taken from a finite population of size N. Answer parts (a) through (c) below. a. How many possible samples are there? A. N + 1 B. N-1 0 C. N D. 1 b. Identify the relationship between the possible sample means and the possible observations of the variable under consideration. Choose the correct answer below. A. Each possible sample mean is equal to an observation, only if the population...
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Suppose a simple random sample of size 55 is selected from a population with a = 8. Use this information to find the value of the standard error of the mean in each of the following 4 cases (use the finite population correction factor if appropriate). Question 8 1 pts Based on the information in Scenario 7.3, find the value of the standard error of the mean when the population size is infinite. (to 2 decimals) Question 9 1 pts...
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A random sample of size n=68 is taken from a finite population of size N=644 with mean y = 239 and variance o?. 325. [You may find it useful to reference the table.) 8-1. Is it necessary to apply the finite population correction factor? Yes No 0-2. Calculate the expected value and the standard error of the sample mean (Round "expected value to a whole number and standard error to 4 decimal places.) Answer is complete but not entirely correct....
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Simple random sampling uses a sample of size n from a
population of size N to obtain data that can be used to
make inferences about the characteristics of a population. Suppose
that, from a population of 58 bank accounts, we want to take a
random sample of four accounts in order to learn about the
population. How many different random samples of four accounts are
possible?
A simple random sample of size n= 15 is drawn from a population that is normally distributed. The sample mean is found to be x = 22.8 and the sample standard deviation is found to be s = 6.3. Determine if the population mean is different from 25 at the a= 0.01 level of significance. Complete parts (a) through (d) below. (a) Determine the null and alternative hypotheses. Ho 25 H: V25 (b) Calculate the P-value. P-value = (Round to...
A simple random sample of size n= 15 is drawn from a population that is normally distributed. The sample mean is found to be x=20.9 and the sample standard deviation is found to be s = 6.3. Determine if the population mean is different from 26 at the a = 0.01 level of significance. Complete parts (a) through (d) below. (a) Determine the null and alternative hypotheses. H: 726 (b) Calculate the P-value. P-value = (Round to three decimal places...
A simple random sample of size n 15 is drawn from a population that is normally distributed. The sample mean is found to be x 24.4 and the sample standard deviation is found to be s 6.3. Determine if the population mean is different from 26 at the 0.01 level of significance. Complete parts (a) through (d) below. (a) Determine the null and alternative hypotheses. ЕЕ (b) Calculate the P-value P.value Round to three decimal places as needed.) (c) State...
A simple random sample of size n = 15 is drawn from a population that is normally distributed. The sample mean is found to be x=19.2 and the sample standard deviation is found to be s =6.3. Determine if the population mean is different from 25 at the c=0.01 level of significance. Complete parts (a) through (d) below. H: 1 25 (b) Calculate the P-value P-value (Round to three decimal places as needed.) Enter your answer in the answer box...
Suppose that a random sample of size 1 is to be taken from a finite population of size N. Answer parts (a) through (c) below. a. How many possible samples are there? A. N + 1 B. N-1 0 C. N D. 1 b. Identify the relationship between the possible sample means and the possible observations of the variable under consideration. Choose the correct answer below. A. Each possible sample mean is equal to an observation, only if the population...
Suppose a simple random sample of size 55 is selected from a population with a = 8. Use this information to find the value of the standard error of the mean in each of the following 4 cases (use the finite population correction factor if appropriate). Question 8 1 pts Based on the information in Scenario 7.3, find the value of the standard error of the mean when the population size is infinite. (to 2 decimals) Question 9 1 pts...
A random sample of size n=68 is taken from a finite population of size N=644 with mean y = 239 and variance o?. 325. [You may find it useful to reference the table.) 8-1. Is it necessary to apply the finite population correction factor? Yes No 0-2. Calculate the expected value and the standard error of the sample mean (Round "expected value to a whole number and standard error to 4 decimal places.) Answer is complete but not entirely correct....