Use of a normal curve to model the distribution

Reference no: EM131121745

A sample of 20 fruitfly (Drosophila melanogaster) larva were incubated at 37 °C for 30 minutes. It is theorized that such exposure to heat causes polytene chromosomes located in the salivary glands of the fly to unwind, creating puffs on the chromosome arm that are visible under a microscope. The following normal probabilityplot supports the use of a normal curve to model the distribution of puffs.⁵⁰

The average number of puffs for the 20 observations was 4.30, with a standard deviation of 2.03.

(a) Construct a 95% confidence interval for .

(b) In the context of this problem, describe what represents. That is, the confidence interval from part (a) is a confidence interval for what quantity?

(c) The normal probability plot shows the dots lining up on horizontal bands. Is this sort of behavior surprising for this type of data? Explain.

Reference no: EM131121745

Questions Cloud

Domains where reframing can enhance competitiveness : Why is it difficult for incumbent businesses to compete with new market entrants with novel business models? What is reframing beliefs important? - and - What are some ways to accomplish this reframing? What are some of the domains where reframing ca..

The average income of american women : Women's incomes. The average income of American women who work full-time and have only a high school degree is $33,230. You wonder whether the mean income of female graduates from your local high school who work full-time but have only a high scho..

Adaptive organizational design efficient and effective : What competitive advantage do you think Starbucks has? What will they need to do to maintain and sustain the advantage? Is Starbucks “living” its mission? Discuss. Why do you think it is important for Starbucks to keep its mobile workforce “connected..

What samples can be used for diagnosis : Explain how the assays work to diagnose the particular disease, and what samples can be used for diagnosis. Compare and contrast the advantages and disadvantages of each technology.

Use of a normal curve to model the distribution : A sample of 20 fruitfly (Drosophila melanogaster) larva were incubated at 37 °C for 30 minutes. It is theorized that such exposure to heat causes polytene chromosomes located in the salivary glands of the fly to unwind, creating puffs on the chrom..

What options do you believe the employer has : Can an employee request that an attorney or union representative attend a private conference with the compliance officer? If the union demands to have a representative present, does the employee have to comply?(Your response should be at least 75 ..

Gain communications continued : Redo Exercise 4.67 assuming correlation 0.01 between civilian and military sales. Redo the exercise assuming correlation 0.99. Comment on the effect of small and large correlations on the uncertainty of Gain's sales projections.

What services need through duration of recovery experience : Consider, for example, a 56-year-old man who has a hemorrhagic stroke in a rural area of Alaska. What services will he need through the duration of his recovery experience? Where will he receive care? How will he pay for the services he needs?

Sales proposal-executive summary-customer needs : The sales proposal should include the following sections: Executive Summary, Customer Needs and Proposed Solution, Seller Profile, Pricing and Sales Agreement, and Implementation and Timetable.

User Account

All Pages