Suppose you want to estimate a population mean correct to within 0.25 with probability equal to...
Suppose you want to estimate a population mean correct to within 0.25 with probability equal to 0.95. You do not know the population variance but you are given that the observations will range in value between 20 and 40. Then the approximate sample size that will produce the desired accuracy of the estimate is __________.
40
39
1537
1536
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Suppose you want to estimate a population mean correct to within
0.25 with probability equal to...
Suppose you wish to estimate a population mean correct to within 0.13 with a confidence level...
Suppose you wish to estimate a population mean correct to within 0.13 with a confidence level of .90. You do not know sigma squared σ2, but you know that the observations will range in value between 32 and 40 Complete parts a and b. a. Find the approximate sample size that will produce the desired accuracy of the estimate. You wish to be conservative to ensure that the sample size will be ample for achieving the desired accuracy of the...
Suppose you wish to estimate a population mean correct to within 0.13 with a confidence level...
Suppose you wish to estimate a population mean correct to within 0.13 with a confidence level of .90. You do not know σ , but you know that the observations will range in value between 37 and 45. Complete parts a and b a. Find the approximate sample size that will produce the desired accuracy of the estimate. You wish to be conservative to ensure that the sample size will be ample for achieving the desired accuracy of the estimate....
suppose you wish to estimate a population mean correct to within 0.14 with a confidence level...
suppose you wish to estimate a population mean correct to within 0.14 with a confidence level of .90. You do not know σ', but you know that the observations will range in value between 37 and 45. Complete parts a and b. a. Find the approximate sample size that will produce the desired accuracy of the estimate. You wish to be conservative to ensure that the sample size will be ample for achieving the desired accuracy of the estimate. (Hint:...
Suppose you wish to estimate a population mean correct to within 0.14 with a confidence level...
Suppose you wish to estimate a population mean correct to within 0.14 with a confidence level of .90. You do not know sigma squaredσ2, but you know that the observations will range in value between 35 and 43. Complete parts a and b. a. Find the approximate sample size that will produce the desired accuracy of the estimate. You wish to be conservative to ensure that the sample size will be ample for achieving the desired accuracy of the estimate....
b. Calculate the approximate sample size, making the less conservative assumption that the range of the...
b. Calculate the approximate sample size, making the less
conservative assumption that the range of the observations is equal
to 6sigma . The approximate sample size is nothing . (Round up to
the nearest integer.)
Can someone please help me solve this.
Suppose you wish to estimate a population mean correct to within 0.15 with a confidence level of .90. You do not know o*, but you know that the observations will range in value between 34 and 42. Complete...
You want to estimate the population mean by taking a sample and constructing a 80% confidence...
You want to estimate the population mean by taking a sample and constructing a 80% confidence interval. You know the population standard deviation is 6.08. Compute the minimum sample size needed to ensure that your interval estimate has a margin of error less than or equal to 1.8.
Suppose you take a sample of size 4 from a population that is normally distributed with...
Suppose you take a sample of size 4 from a population that is normally distributed with a mean of 70 and a standard deviation of 10. Based on such a sample, what is the (approximate) probability of getting a sample mean between 60 and 80? Question 3 options: 0.025 0.05 0.5 0.95 0.975 Question 4 (1 point) Suppose you take a sample of size 4 from a population that is normally distributed with a known standard deviation of 10. You...
a. What is the probability that the sample mean is within $600 of the population mean...
a. What is the probability that the sample mean
is within $600 of the population mean if a sample of size 40 is
used (to 4 decimals)?
b. What is the probability that the sample mean
is within $600 of the population mean if a sample of size 80 is
used (to 4 decimals)?
In the EAI sampling problem, the population mean is $51,200 and the population standard deviation is $4,000. When the sample size is n 20, there is...
You want to estimate the mean IQ for a population of students with a 95% confidence...
You want to estimate the mean IQ for a population of students with a 95% confidence interval. Assume that the population standard deviation is known to be 15. If you want your estimate to be within 5 points of the value of the parameter, you will need a sample size of... (Round z to the nearest hundredth.)
If you wish to estimate a population mean to within 0.2 using a 95% confidence interval and you know from prior sampling...
If you wish to estimate a population mean to within 0.2 using a 95% confidence interval and you know from prior sampling that is approximately equal to 5.4, how many observations would you have to include in your sample? Thank You!
Suppose you wish to estimate a population mean correct to within 0.13 with a confidence level of .90. You do not know σ , but you know that the observations will range in value between 37 and 45. Complete parts a and b a. Find the approximate sample size that will produce the desired accuracy of the estimate. You wish to be conservative to ensure that the sample size will be ample for achieving the desired accuracy of the estimate....
suppose you wish to estimate a population mean correct to within 0.14 with a confidence level of .90. You do not know σ', but you know that the observations will range in value between 37 and 45. Complete parts a and b. a. Find the approximate sample size that will produce the desired accuracy of the estimate. You wish to be conservative to ensure that the sample size will be ample for achieving the desired accuracy of the estimate. (Hint:...
b. Calculate the approximate sample size, making the less
conservative assumption that the range of the observations is equal
to 6sigma . The approximate sample size is nothing . (Round up to
the nearest integer.)
Can someone please help me solve this.
Suppose you wish to estimate a population mean correct to within 0.15 with a confidence level of .90. You do not know o*, but you know that the observations will range in value between 34 and 42. Complete...
a. What is the probability that the sample mean
is within $600 of the population mean if a sample of size 40 is
used (to 4 decimals)?
b. What is the probability that the sample mean
is within $600 of the population mean if a sample of size 80 is
used (to 4 decimals)?
In the EAI sampling problem, the population mean is $51,200 and the population standard deviation is $4,000. When the sample size is n 20, there is...
You want to estimate the mean IQ for a population of students with a 95% confidence interval. Assume that the population standard deviation is known to be 15. If you want your estimate to be within 5 points of the value of the parameter, you will need a sample size of... (Round z to the nearest hundredth.)
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