Estimate the mean and standard deviation of his eggs

Reference no: EM131394543

Hens usually begin laying eggs when they are about 6 months old. Young hens tend to lay smaller eggs, often weighing less than the desired minimum weight of 54 grams.

a) The average weight of the eggs produced by the young hens is 50.9 grams, and only 28% of their eggs exceed the desired minimum weight. If a Normal model is appropriate, what would the standard deviation of the egg weights be?

b) By the time these hens have reached the age of 1 year, the eggs they produce average 67.1 grams, and 98% of them are above the minimum weight. What is the standard deviation for the appropriate Normal model for these older hens?

c) Are egg sizes more consistent for the younger hens or the older ones? Explain.

d) A certain poultry farmer finds that 8% of his eggs are underweight and that 12% weigh over 70 grams. Estimate the mean and standard deviation of his eggs.

Reference no: EM131394543

Questions Cloud

Ow to get your message across efficiently and effectively : Make sure to include descriptions of at least three different social media tools, how each is being used to communicate during crisis management, and rules for how to get your message across efficiently, effectively, and succinctly using these too..

Display these data with an appropriate graph : Display these data with an appropriate graph.- Report appropriate summary statistics.- Write a few sentences about this distribution.

Calculate the common-sized balance sheet : Provide a brief analysis of what the ratio indicates for your company. Calculate the common-sized balance sheet and income statement (vertical analysis)

What is standard deviation of weights of given new romans : The researchers produce a new variety with a mean weight of 75 grams, which meets the 4% goal. What is the standard deviation of the weights of these new Romas?

Estimate the mean and standard deviation of his eggs : A certain poultry farmer finds that 8% of his eggs are underweight and that 12% weigh over 70 grams. Estimate the mean and standard deviation of his eggs.

Prepare a crisis communication plan for an organization : Develop a crisis communication plan for an organization of your choice. Include a social media policy. Plan should be no less than five pages long and include, at a minimum, the Title page (with clear identification of organization).

What mean and standard deviation should define the model : Wildlife biologists believe that the weights of adult trout can be described by a Normal model.- What mean and standard deviation should define the model?

Find the mean and standard deviation : If the age at which babies develop the ability to walk can be described by a Normal model, find the parameters (mean and standard deviation).

Percentage of men and of women should have even larger mouth : If the distribution of mouth volumes is nearly Normal, what percentage of men and of women should have even larger mouths than these?

User Account

All Pages