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Kunci Jawaban Pengantar Statistika Walpole Edisi 3 Full Description SaveSTATISTIKA KELOMPOK 8, ROMBEL 11 Uploaded by Fellaa Veronica Ahmad 0 0 upvotes 0 0 downvotes 719 views 13 pages Document Information click to expand document information Date uploaded Mar 27, 2013 Copyright Attribution Non-Commercial (BY-NC) Available Formats DOCX, PDF, TXT or read online from Scribd Share this document Share or Embed Document Sharing Options Share on Facebook, opens a new window Facebook Share on Twitter, opens a new window Twitter Share on LinkedIn, opens a new window LinkedIn Share with Email, opens mail client Email Copy Text Copy Link Did you find this document useful 0 0 upvotes, Mark this document as useful 0 0 downvotes, Mark this document as not useful Is this content inappropriate Report this Document Download Now save Save STATISTIKA KELOMPOK 8, ROMBEL 11 For Later 719 views 0 0 upvotes 0 0 downvotes STATISTIKA KELOMPOK 8, ROMBEL 11 Uploaded by Fellaa Veronica Ahmad Description: Full description save Save STATISTIKA KELOMPOK 8, ROMBEL 11 For Later 0 0 upvotes, Mark this document as useful 0 0 downvotes, Mark this document as not useful Embed Share Print Download Now Jump to Page You are on page 1 of 13 Search inside document. Browse Books Site Directory Site Language: English Change Language English Change Language. Levin, David S. Rubin., Statistics for Management., Prentice Hall International, Sevent Edition.,page 365, number 7-30). Kunci Jawaban Pengantar Statistika Walpole Edisi 3 Mac Graw HillDetermine the 99 persen confidence interval for the population mean Soal dan jawab penaksiran no 1 (Lind, Marchal, Wathen., Statistical Techniques in Business and Economics., Mac Graw Hill., Fourteenth edition., Exercise 1 page 297). Detremine the 95 confidence interval for the population mean Soal dan jawab penaksiran no 2 (Lind, Marchal, Wathen., Statistical Techniques in Business and Economics., Mac Graw Hill., Fourteenth edition., Exercise2 page 297). They found the distribution of amount spend per week followed the normal distribution with standard deviation of 5. A sampel of 49 steady smokers revealed that (a) What is the point estimate of the population mean (b) Using the 95 percent level of confidence, determine the confidence interval for Soal dan jawab penaksiran no 3 (Lind, Marchal, Wathen., Statistical Techniques in Business and Economics., Mac Graw Hill., Fourteenth edition., Exercise 5 page 297). A Sample of 20 chickens shows they laid an average of 20 eggs per month with a standard deviation of 2 eggs per month (a) What is the value of population mean What is the best estimates of this value (b) Explain why we need to use the t distribution. What assumption do you need to make (c)For a 95 confidence level, what is the value of t( d) Develop a 95 percent confidence interval for the population mean (e)Would it be reasonable to conclude that the population mean is 21 eggs what about 25 eggs Soal dan jawab penaksiran no 4 (Lind, Marchal, Wathen., Statistical Techniques in Business and Economics., Mac Graw Hill., Fourteenth edition., Exercise 11 page 304). He surveys 100 customers and find that 80 paid at the pump (a) Estimate the value of the population proportion (b)Develop a 95 confidence interval for the proportion (c) Interpret your findings Soal dan jawab penaksiran no 5 (Lind, Marchal, Wathen., Statistical Techniques in Business and Economics., Mac Graw Hill., Fourteenth edition., Exercise 15 page 308). Before completing the petitions, she decides to conduct a survey of voters in Bear Gulch. A sample of 400 voters reveals that 300 would support her in the November election (a) Estimate the value of population proportion (b) Develop a 99 percent confidence interval for the population proportion (c) Interpret your finding Soal dan jawab penaksiran no 6 (Lind, Marchal, Wathen., Statistical Techniques in Business and Economics., Mac Graw Hill., Fourteenth edition., Exercise 16 page 308). A random sampel of 50 of those in attendance revealed that the mean number of soft drinks comsumed per person wa 1.86 with stnadradr deviation of 0.50. Develop of a 99 percent confidence interval for the mean number of soft drinks comsumed per person Soal dan jawab penaksiran no 7 (Lind, Marchal, Wathen., Statistical Techniques in Business and Economics., Mac Graw Hill., Fourteenth edition., Exercise 21 page 310). We want to estimate the population mean within 2, within a 95 percent level of confidence. Hor large a sample is required Soal dan jawab penaksiran no 8 (Lind, Marchal, Wathen., Statistical Techniques in Business and Economics., Mac Graw Hill., Fourteenth edition., Exercise 23 page 313. A pilot survey indicated that the mean per week is 12 hours, with a standard deviation of 3 hours. It is desired to estimate the mean viewing time within one-quarter hour. How many executives should be surveyed Soal dan jawab penaksiran no 9 (Lind, Marchal, Wathen., Statistical Techniques in Business and Economics., Mac Graw Hill., Fourteenth edition., Exercise 27 page 313. The president want to estimate to be within 0.04 of the true population. The presidents political advisors estimated the proportion supporting the current policy to be 0.60 (a) How large a sample is required (b)How large a sample would be necessary if no estimate were available for the proportion supporting current policy Soal dan jawab penaksiran no 10 (Lind, Marchal, Wathen., Statistical Techniques in Business and Economics., Mac Graw Hill., Fourteenth edition., Exercise 29 page 313. Bila suatu contoh acak 30 bohlam mencapai umur rata-rata 780 jam, buat selang kepercayaan 96 bagi nilai tengah populasi umur bohlam yang diproduksi perusahaan itu (Ronald E Walpole., Pengantar Statistika., PT gramedia Pustaka Utama, Jakarta, Edisi ke 3, Soal-soal latihan halaman 256, nomor 3) Soal dan jawab penaksiran no 11. He selected a sampel of 30 night, which resulted in a mean of 71. The population standard deviation has been established as 3.76. Give an interval estimate that has a 68.3 percent probability of including the population mean (b) Give an interval estimate that has a 99.7 percent chance of including the population mean solution of Estimation Assigment no 16 (Richard I. Levin, David S. Rubin., Statistics for Management., Prentice Hall International, Sevent Edition.,page 357, number 7-15). What assumption is implied about the number of a errors bank tellers make solution of Estimation Assigment no 17 (Richard I. Levin, David S. Rubin., Statistics for Management., Prentice Hall International, Sevent Edition.,page 378, number 7-49). She randomly select 48 students and she finds the sampel mean to be 64.5 inches and the stanadard deviation to be 2.3 inches. Find the estimated standard error of the mean (b) Construct a 90 percent confidence interval for the mean solution of Estimation Assigment no 18 (Richard I.
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