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17. The average age of residents in a large residential retirement community is 69 years with...
The average age of cars owned by residents of a small city is 6 years with...
The average age of cars owned by residents of a small city is 6 years with a standard deviation of 2.2 years but the distribution is quite skewed. A simple random sample of 400 cars is to be selected, and the sample mean age x bar of these cars is to be computed. We know the random variable x bar has approximately a normal distributuion because of a. the law of large numbers b. the central limit theorem c. simpson's...
Cats live for 14 years on average, with a standard deviation of 2 years. A simple...
Cats live for 14 years on average, with a standard deviation of 2 years. A simple random sample of 78 recently deceased cats is selected, and the sample mean age at death of these cats is computed. We know that the random variable has an approximately Normal distribution because of a. the law of large numbers. b. the fact that probability is the long-run proportion of times an event occurs. c. the 68–95–99.7 rule. d. the central limit theorem
Dogs live for 14 years on average, with a standard deviation of 2 years. A simple...
Dogs live for 14 years on average, with a standard deviation of 2 years. A simple random sample of 78 recently deceased dogs is selected, and the sample mean age at death of these dogs is computed. We know the distribution of the sample mean is approximately normal here because of the central limit theorem the fact that dogs normally live approximately significantly longer than average dog the empirical rule the law of large numbers
The Central Limit Theorem is important in statistics because _. A for a large n, it...
The Central Limit Theorem is important in statistics because _. A for a large n, it says the population is approximately normal B for any population, it says the sampling distribution of the sample mean is approximately normal, regardless of the sample size C for a large n, it says the sampling distribution of the sample mean is approximately normal, regardless of the population D for any size sample, it says the sampling distribution of the sample mean is approximately...
a simple random sample of size n=72 is obtained from a population with u=82 and o=3....
a
simple random sample of size n=72 is obtained from a population
with u=82 and o=3. does the population need to be normallt
distibuted for the sampling distribution of x to be approximately
normaly distibuted? why? what is the sampling distribution of
x?
A simple random sample of stren72 is obtained from a population with 12 and a = 3. Does the population need to be normally distributed for the sampling distribution of to be approximately omally distributed? Why? What...
The average age of cars owned by residents of a small city is 6 years with...
The average age of cars owned by residents of a small city is 6 years with a standard deviation of 2.2 years. A simple random sample of 400 cars is to be selected, and the sample mean age of these cars is to be computed. What is the probability that the average age of the 400 cars is more than 6.1 years? Show all main steps of your calculation. (No points will be given to an answer of only a final number provided even...
A simple random sample of size n=74 is obtained from a population with 82 and 8-6...
A simple random sample of size n=74 is obtained from a population with 82 and 8-6 Does the population need to be normally distributed for the sampling distribution of to be approximately normally distributed? Why? What is the sampling distribution of i? Does the population need to be normally distributed for the sampling distribution of to be approximately normally dibuted? Why? O A. No because the Central Limit Theorem states that only if the shape of the underlying population is...
A recent study reported that 25% of the residents of a particular community lived in poverty....
A recent study reported that 25% of the residents of a particular community lived in poverty. Suppose a random sample of 300 residents of this community is taken. We wish to determine the probability that 29% or mon in poverty. Complete parts (a) and (b) below. a. Before doing any calculations, determine whether this probability is greater than 50% or less than 50%. Why? O A. The answer should be less than 50%, because the resulting Z-score will be negative...
A simple random sample of size n 43 is obtained from a population that is skewed...
A simple random sample of size n 43 is obtained from a population that is skewed left with = 54 and 06. Does the population need to be normally distributed for the sampling distribution of x to be approximately normally distributed? Why? What is the sampling distribution of Does the population need to be normally distributed for the sampling distribution of x to be approximately normally distributed? Why? O A. No. The central limit theorem states that only if the...
Please provide as much detail as possible!!! 5.26 What is wrong? Explain what is wrong in...
Please provide as much detail as possible!!!
5.26 What is wrong? Explain what is wrong in each of the following statements. (a) The central limit theorem states that for large n, the population mean u is approximately Normal. (b) For large n, the distribution of observed values will be approximately Normal. (c) For sufficiently large n, the 68–95–99.7 rule says that I should be within u + 20 about 95% of the time. (d) As long as the sample size...
a
simple random sample of size n=72 is obtained from a population
with u=82 and o=3. does the population need to be normallt
distibuted for the sampling distribution of x to be approximately
normaly distibuted? why? what is the sampling distribution of
x?
A simple random sample of stren72 is obtained from a population with 12 and a = 3. Does the population need to be normally distributed for the sampling distribution of to be approximately omally distributed? Why? What...
A simple random sample of size n=74 is obtained from a population with 82 and 8-6 Does the population need to be normally distributed for the sampling distribution of to be approximately normally distributed? Why? What is the sampling distribution of i? Does the population need to be normally distributed for the sampling distribution of to be approximately normally dibuted? Why? O A. No because the Central Limit Theorem states that only if the shape of the underlying population is...
A recent study reported that 25% of the residents of a particular community lived in poverty. Suppose a random sample of 300 residents of this community is taken. We wish to determine the probability that 29% or mon in poverty. Complete parts (a) and (b) below. a. Before doing any calculations, determine whether this probability is greater than 50% or less than 50%. Why? O A. The answer should be less than 50%, because the resulting Z-score will be negative...
A simple random sample of size n 43 is obtained from a population that is skewed left with = 54 and 06. Does the population need to be normally distributed for the sampling distribution of x to be approximately normally distributed? Why? What is the sampling distribution of Does the population need to be normally distributed for the sampling distribution of x to be approximately normally distributed? Why? O A. No. The central limit theorem states that only if the...
Please provide as much detail as possible!!!
5.26 What is wrong? Explain what is wrong in each of the following statements. (a) The central limit theorem states that for large n, the population mean u is approximately Normal. (b) For large n, the distribution of observed values will be approximately Normal. (c) For sufficiently large n, the 68–95–99.7 rule says that I should be within u + 20 about 95% of the time. (d) As long as the sample size...
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At a certain temperature, the ?pKp for the decomposition of
H2SH2S is 0.832.0.832.
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