Question

In: Statistics and Probability

Refer to the previous problem. How large a sample would be required to estimate the population...

Refer to the previous problem. How large a sample would be required to estimate the population proportion to within .05 with 95 percent confidence (.30 is the best available estimate of p): (a) If the finite population correction can be ignored? (b) If the finite population correction is not ignored and N= 1500? Please without Minitab or Rstudio, Step by step

Solutions

Expert Solution


Related Solutions

1.   How large of a sample is required if we want to estimate the mean price...
1.   How large of a sample is required if we want to estimate the mean price of a five year old Corvette within +/- $500 with 90% confidence if the standard deviation is known to be $3100. 2.   Several factors are involved when creating confidence intervals, such as sample size, the level of confidence and margin of error. Which of the following statements are true. a.   For a given sample size, reducing the margin of error will mean lower confidence....
An interval estimate of a population mean is required. The statistician is concerned that the sample...
An interval estimate of a population mean is required. The statistician is concerned that the sample may not have arisen from a Normal distribution as there was a distinct lack of symmetry in a boxplot of the ( continuous) variable of interest. List two approaches that could be used here to address this concern.
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you...
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p∗=84%p∗=84%. You would like to be 95% confident that your esimate is within 3% of the true population proportion. How large of a sample size is required?
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you...
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.37. You would like to be 98% confident that your estimate is within 3% of the true population proportion. How large of a sample size is required?
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you...
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p ? = 80 % . You would like to be 99.9% confident that your esimate is within 2.5% of the true population proportion. How large of a sample size is required?
You want to obtain a sample to estimate a population mean. Based on previous evidence, you...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ = 55.8 σ = 55.8 . You would like to be 95% confident that your estimate is within 10 of the true population mean. How large of a sample size is required?
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you...
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.14. You would like to be 98% confident that your esimate is within 3% of the true population proportion. How large of a sample size is required? n=____
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you...
You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 61%. You would like to be 90% confident that your estimate is within 1% of the true population proportion. How large of a sample size is required? n=_____
1.) You want to obtain a sample to estimate a population proportion. Based on previous evidence,...
1.) You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately 74%. You would like to be 98% confident that your estimate is within 2% of the true population proportion. How large of a sample size is required? 2.) You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=70.8σ=70.8. You would like to be...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you...
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=58.2σ=58.2. You would like to be 95% confident that your estimate is within 2 of the true population mean. How large of a sample size is required? Use a z* value accurate to TWO places for this problem. (Not z = 2)
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT