User Account

All Pages

Average prevalence of a chemical in the population

Assignment Help Basic Statistics
Reference no: EM131703204

We wish to measure the average prevalence of a chemical in the population. The measurement is done by a blood test. We expect the standard deviation in the population to be about 300ppm. If we want to know the average to within 200ppm with a confidence of 95%, how many people do we need to test?

Reference no: EM131703204

Questions Cloud

How would you feel if google implemented this concept : In terms of customer's paying to use Twitter, what do you think of the "buy up" concept. That works well with game programs
The orthogonal trajectory to the family of circles : The orthogonal trajectory to the family of circles - The orthogonal trajectory of the family of curve and The orthogonal trajectory of the family
What are three of the most important concepts : What are three of the most important concepts from this this video? Why? Examples from the video?
Define healthcare while respecting the patients right : What reasoning can be provided when considering advanced directives, tort, and the role on has in healthcare while respecting the patient's right
Average prevalence of a chemical in the population : We wish to measure the average prevalence of a chemical in the population. The measurement is done by a blood test. We expect the standard deviation
Compute the t-statistic : We have the following data: sample mean ¯x= 42.6, sample deviation s= 2, number of samples n= 33 and the null hypothesis is µ0= 42.
Define the transition to a value based system : The healthcare system is slowly making the transition to a value based system
Pounds with a standard deviation : The average weight of football players on a team has been computed to be 235.5 pounds with a standard deviation of 30.5 pounds.
Define dialectical process of thought and review of thought : What is the process by which people might best set out doing this using a dialectical process of thought and review of thought and positions taken

Reviews

Write a Review

Basic Statistics Questions & Answers

  What was the primary use of statistics in ancient times

What was the primary use of statistics in ancient times?- In what ways can business statistics be useful in today's business environment?

  Provide two values for each pair of values use a percentage

car sales in the current month 18830 toyota camry cars were sold and there were 18341 honda civic cars soldprovide two

  Presentation on his fourth attempt

A salesman normally makes a sale (closes) on 80% of his presentations. Assuming the presentations are independent, find the probability of each of the following. a) He fails to close for the first time on his fifth attempt. b) He closes his first p..

  Identify variables measured as quantitative or qualitative

Ground motion of earthquakes.- Identify the experimental units for given study.- Identify the variables measured as quantitative or qualitative.

  Draw a bar graph for the data on the first five stocks

Draw a bar graph for the data on the first five stocks in given problem. Is any one of the three kinds of plot more appropriate than the others for these data? If so, why?

  Corresponding probability rounded to four decimals

With reference to Exercise 71, what can we assert about the amount of time it takes a person to be served at the given restaurant if we use Chebyshev's theorem with k = 1.5? What is the corresponding probability rounded to four decimals?

  Did the results support the researcher hypothesis

A health psychologist noticed that the siblings of his obese patients are often not overweight. He hypothesized that the normal-weight siblings consume.

  Let x0x1x2 be a markov chain with state space 1 2 and

let x0x1x2 be a markov chain with state space 1 2 and transition probabilities given as follows p11 0.3 p12 0.7 p21

  What is the probability that both cards are spade face cards

Concern 2-card hands from a standard 52-card deck. A standard deck has 13 cards from each of 4 suits (clubs, diamonds, hearts, spades).

  How is the rejection region defined

How is the rejection region defined and how is that related to the z-score and the p value? When do you reject or fail to reject the null hypothesis?

  The geometric mean expected yearly rate of increase

The metropolitan area of Los Angeles-Long Beach, California, showed the largest increase in the number of jobs between 1983 and 2009. The number of jobs increased from 5,167,500 to 6,295,000. What was the geometric mean expected yearly rate of..

  Would you expect the correlation to be positive or negative

Crime rate and population. Research by law enforcement agencies has shown that the crime rate is correlated with the U.S. population. Would you expect the correlation to be positive or negative? Explain.

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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