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Questions
1. A genetic experiment with peapods resulted in one sample of offspring that consisted of 443 green peapods and 170 yellow peapods. Construct a 95% confidence interval to estimate the true percentage of yellow peapods.
2. A random sample of the birth weights of 186 babies has a mean of 3103 grams and a standard deviation of 700 grams. Construct a 98% confidence interval estimate of the mean birth weight for all such babies.
3. Salaries of 31 college professors who took a geology course in college have a mean of $58,000 and a standard deviation of $16,954. Construct a 90% confidence interval estimate of the population standard deviation of all such professors.
jay can remember only the first 4 digits of his friends phone number. he also knows that the number has 7 digits and the last digit is not a zero. if jay were to dial all of the po
1. MMC's CEO, Dr. Warren A. Beatty (Not the actor) believes that the demand trend for MMC is essentially linear. Thus, he wishes to determine if linear regression would be an effec
Find Karl Pearson's correlation coefficient between the sales and expenses from the data given below:
customer behaviour in accounting felid of study
Barker Company has a single product called a Zet. The company normally produces and sells 80,000 Zets each year at a selling price of $40 per unit. The company’s unit costs at this
A survey showed that 80% of the 1600 adult respondents believe in global warming. Construct a 95% confidence interval estimate of the proportion of adults believing in global warmi
Isotopes Elements having same atomic number Z, but different A mass number for example 126C, 146C and 11H 21H, 31H are isotopes of carbon and hydrogen.
Year : 2008 2009 2010 2011 2012 2013 sale : 111 120 114 123 117 126
Accounting system is one prevalent among agencies in voluntary sector. Transactions are registered in journals only when cash is in fact paid out or taken in. The primary virtue of
1. Stock A and B have the following probability distributions: ECONONOMY PROBABILITY K(A) K(B) Boom
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