Question on sample size estimation

Assignment Help Basic Statistics

Reference no: EM1394349

A) A nutritionist wants to estimate the mean amount of cholesterol in a certain variety of chicken eggs. She wants to be within 14 mg. with 99% confidence. It is believed that the standard deviation is 25 mg. How large a sample of eggs should she use?

B) A nurseryman wants to estimate how many poinsettias he will need for Christmas. He estimates the standard deviation to be 15. If he wishes to be 95% certain of having enough plants, how large a sample must he take to be within 5 plants?

C) The manager of a supermarket wants to estimate the proportion of customers who will be using food stamps at his store. How large a sample is required to estimate the true proportion to within 2% with 99% confidence?

Reference no: EM1394349

Questions Cloud

Explain target market and form of ownership : Interview the entrepreneur or small business owner in community and write down minimum of three pages about what you learned from interview.How did you get started? Describe your target market.

Sample size and finite population correction factor : The house of representatives has a very controversial bill that will be going to vote. To help formulate his strategy on how to get the bill passed, the chairman of the committee that has been studying the bill wishes to know if there is a divisio..

Find out the gain or loss on the sale : Suppose the same as in Part a, except which his aunt purchased A&M stock for $71,000 also his uncle purchased Longhorn stock for $31,200.

Possible number of passwords : A computer password consists of four characters. The characters can be one of the 26 letters of the alphabet. Each character may be used more than once. How many different passwords are possible?

Question on sample size estimation : A nutritionist wants to estimate the mean amount of cholesterol in a certain variety of chicken eggs. She wants to be within 14 mg. with 99% confidence.

Determine the phenotypic and genotypic ratio : If you were to perform the following monohybrid cross: AA x aa, where A is completely dominant, what would the phenotypic ratio be.

Discuss the law should prohibit all bad behaviour : Review the four components which make up legal astuteness also rank order the four components in order of most valuable to manager's in today's business climate.

Financial statements present a company to the public : Which financial statement requires input from the income statement and statement of retained earnings. Also what information does this financial statement provide

Sample size determination for proportion : You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 95 percent confidence level and state that the estimated proportion must be within 2 percent of the population proportion.

User Account

All Pages