a)from range thumb rule σ =range/4 =(35000-10000)/4=6250
b)
for margin of error 300 ;
for 95 % CI value of z= | 1.960 |
standard deviation σ= | 6250.00 |
margin of error E = | 300 |
required sample size n=(zσ/E)2 = | 1668.0 |
for margin of error 190 ;
required sample size n=(zσ/E)2 = | 4157.0 |
for margin of error 80 ;
required sample size n=(zσ/E)2 = | 23447.0 |
c)
No ; the sample size.,
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eBook Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $20,000 and $35,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. a. What is the planning value for the population standard deviation? b. How large a sample should be taken if the desired margin of error is $400? Round your answer to next whole number. $250? 890? c. Would you recommend trying to obtain...
Annual starting salaries of college graduates with degrees in business administration are generally expected to be between $30,000 and $45,000. 1) Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. Determine the planning value for the population standard deviation. 2) Determine how large a sample should be taken if the desired margin of error is: a. $400 b. $190 c. $90
Annual starting salaries of college graduates with degrees in business administration are generally expected to be between $30,000 and $45,000.1) Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. Determine the planning value for the population standarddeviation.2) Determine how large a sample should be taken if the desired margin of error is:a. $500b. $200c. $100d. Would you recommend trying to obtain the $100 margin of error? Explain
Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $10,000 and $35,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. a. What is the planning value for the population standard deviation? b. How large a sample should be taken if the desired margin of error is $400? Round your answer to next whole number. $230? $90?
I need help with stats еBook Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $10,000 and $45,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. a. What is the planning value for the population standard deviation? b. How large a sample should be taken if the desired margin of error is $300? Round your answer to next whole number. $150? $110? c. Would...
{Exercise 8.27 (Algorithmic)}. Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $40,000 and $50,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. What is the planning value for the population standard deviation (to the nearest whole number)? 3750 How large a sample should be taken if the desired margin of error is as shown below to the nearest whole number)? a. $500? 216...
Exercise 8.27 (Algorithmic)} Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,000 and $50,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. What is the planning value for the population standard deviation (to the nearest whole number)? 3750 How large a sample should be taken if the desired margin of error is as shown below (to the nearest whole number)? a. $500? 216...
Annual salaries for college graduates with degrees in marketing are generally expected to be between $39,000 and $53,200. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. (Round your answers up to the nearest whole number.) What is the planning value for the population standard deviation? (a) How large a sample should be taken if the desired margin of error is $600? (b) How large a sample should be taken if the desired...
Annual starting salaries for college graduates with degrees in business administration are generally expected to be between $30,000 and $35,000. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. How large a sample should be taken if the desired margin of error is: a. $500? Remove all commas from your answer before submitting. b. $270? Remove all commas from your answer before submitting. c. $120? Remove all commas from your answer before submitting....
You may need to use the appropriate appendix table or technology to answer this question. Annual starting salaries for college graduates with degrees in business administration are generally expected to be betwee $39,000 and $53,200. Assume that a 95% confidence interval estimate of the population mean annual starting salary is desired. (Round your answers up to the nearest whole number.) What is the planning value for the population standard deviation? (a) How large a sample should be taken if the...