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Basic Statistics I - Quiz 4 with Solutions | MATH 1020, Quizzes of Statistics

Xavier University of Louisiana (XULA)Statistics
Prof. Thomas C. Palfrey

Material Type: Quiz; Professor: Palfrey; Class: Basic Statistics I; Subject: Mathematics; University: Xavier University of Louisiana; Term: Spring 2010;

Typology: Quizzes

2009/2010

Uploaded on 04/25/2010

ahodge
ahodge 🇺🇸

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Download Basic Statistics I - Quiz 4 with Solutions | MATH 1020 and more Quizzes Statistics in PDF only on Docsity!

Palfrey Stat. 1020 25 Point Quiz April 8, 2010 Name 1. Anystate Auto Insurance Coinpany took a random sample of 370 insurance claims paid out ducing a I- year period. The average claim was $750 with a population standard deviation of $150. Find a 5% [ confidence interval for the mean claim payment, 224-72 *» 765 28 (8 pts.) I 2. County Boy Seed Company wants lo estimate the yield from its com seed on prime Iowa farmland, A ve an average yield of 170 bushels per acre nfidence interval for the true mean yield per 174 04 3. Morek tested a chicken pox vaccine on 110 patients and the vaccine prevented serious disease in 106 patients. a. Find a point estimate for p, the population proportion of patients receiving the vaccine who are protected from serious dis Se: nfidence Mets or p. (Use at least 4 digits in your calculations). Q«4 9 ty |