What percentage of the trees is less than 38 feet tall

Assignment Help Basic Statistics
Reference no: EM132853182

A. The trees in a forest have a mean height of 39.5 feet with a standard deviation of 2.2 feet. Assuming that the distribution of these trees has roughly the shape of a normal distribution, find:

a. What percentage of the trees is less than 38 feet tall?

b. What percentage are at least 40 feet tall

c. The height above which are the tallest 30 percent of the trees.

Reference no: EM132853182

Questions Cloud

Did what is moral or ethical play a role in decision : Discuss the role of punishing behaviors that can hurt health vs the role of encouraging healthful behaviors by offering incentives such as lower premiums
Identify one effective nursing intervention : Describe a client from clinical setting or previous experience who experienced depression or mania. Include a brief history and 3-5 most pertinent medications.
Discuss the roles of strategic consultants : Critically discuss the roles of strategic(external) consultants, and explain whether consulting firms can be held responsible for the failure of strategy implem
Describe the agenda for the identified policy challenge : Describe the "Agenda" for the identified policy challenge. Include how the policy issue was identified, (Did the organization complete a review of literature)
What percentage of the trees is less than 38 feet tall : A. The trees in a forest have a mean height of 39.5 feet with a standard deviation of 2.2 feet. Assuming that the distribution of these trees has roughly the sh
What is the margin of error : What price do farmers get for their watermelon crops? In the third week of July, a random sample of 42 farming regions gave a sample mean of = $6.88 per
Describe an evaluation plan for the communication : Identify disparities in health among populations for a Healthy People 2020 health issue. Describe an evaluation plan for the communication.
What is the probability john brings rice cakes : 1. John is going to a New Year's celebration. He will bring two dishes to share with his friends but has not yet decided what to bring.
Discuss how social determinants of health for older adult : Discuss how social determinants of health for the older adult are impacted for those living in poverty. Healthy aging is an important public health issue.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Show the true proportion of population in favour of the new

A central university has a student population of 60,000. The university is interested in determining what proportion of them is in favour of a new grading system.

  The true highway mileage y of a specific brand of hybrid

the true highway mileage y of a specific brand of hybrid vehicle has a normal distribution with a mean of 42 and a

  How large a simple random sample will be necessary

If the company wishes to estimate, within 2 percentage points and with 99% confidence, the percentage of employees who are interested in participating in a new stock option benefits program, how large a simple random sample will be necessary?

  Example of an independent sample

Provide an example of an independent sample and or a related sample that might be appropriate for use in your organization.

  In a study conducted by ucla it was found that 30 of

in a study conducted by ucla it was found that 30 of college freshmen support increased military spending. if 12

  Express each of the given events as set operations

Each of the machines A and B in an electronics fabrication plant produces a single batch of 50 electrical components per hour.

  Wireless substitution-early release of estimates

The report "Wireless Substitution: Early Release of Estimates from the National Health Interview Survey" (Center for Disease Control, 2009)

  Program participants in an alcohol rehabilitation program

A sample of 25 program participants in an alcohol rehabilitation program are administered a test to measure their self-reported levels of alcohol intake

  Sample size-birth weight of infants

A health care professional wishes to estimate the birth weight of infants. How large a sample must she select if she desires to be 90% confident that the true mean is within 6 ounces of the sample mean?

  Null hypothesis that an antipollution device for cars

(a) Explain under what conditions we would commit a type I error and under what conditions we would commit a type II error.

  Moving average and trend analysis

Develop a forecast for year 6, using two-year moving average and trend analysis. Identify which method is most appropriate for this data set

  Sample mean of the sampling distribution

The sample mean of the sampling distribution of a statistic is 6 and the standard error of the statistic is 1.03. What is the probability that xbar > 7.52?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd