User Account

All Pages

Confidence interval for the proportion

Assignment Help Basic Statistics
Reference no: EM131152940

Problem: A random sample of 225 adults was given an IQ test. It wasfound that 105 of them scored higher than100 . Based on this, compute a 95% confidence interval for the proportion of all adults whose IQ score isgreater than 100. Then complete the table below.

Reference no: EM131152940

Questions Cloud

Evaluate possible synergy and other effects of acquisition : Assume that the percentage ownership agreement remains the same as in part a. What actual return VC gets, if the IPO value is $ 15 billion? 2 Billion - What % of post IPO equity should VC's shares to be converted in to provide VC its expected retur..
What are the lower and upper limit confidence intervals : A psychologist wants to estimate the standard deviation of IQ scores. It is widely believed that IQ scores follow a normal distribution. Her random sample of 28 IQ scores has a mean of 101 and a standard deviation of 14.7. Find the 95% confidence..
Limit and upper limit of the confidence interval : What are the lower limit and upper limit of the confidence interval? Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place.
How will the members of the team work together : What is the goal of the session? How will the nominal group technique be used to achieve this goal? How will the members of the team work together (guidelines for effective participation)
Confidence interval for the proportion : Problem: A random sample of 225 adults was given an IQ test. It wasfound that 105 of them scored higher than100 . Based on this, compute a 95% confidence interval for the proportion of all adults whose IQ score isgreater than 100. Then complete th..
What is the greatest achievement in public health history : Often referred to as the "father of modern epidemiology", he is credited with identifying the cause of the spread of cholera and creating a statistical method for mapping disease.
Describe methods for increasing the awareness of the aup : Describe methods for increasing the awareness of the AUP, and other policies, within the organization. Critique the AUP you selected and provide recommendations for improving the AUP.
Differentiate between statistics and probability : Differentiate between statistics and probability with respect to what they deal with.
Conduct a macro-external environment analysis : Conduct a macro-external environment analysis (PESTEL) and identify trends that are likely to affect the industry in which your chosen company operates

Reviews

Write a Review

Basic Statistics Questions & Answers

  Sample size and confidence interval

A promotion campaign is being planned to encourage people to reduce heat in their houses at night. In order to measure the campaign's impact, we want to determine the proportion of people who reduce their heat at night.

  How confident for selling four houses within available time

If the agent has enough time to contact only 15 customers, how confident can she be of selling all four houses within the available time?

  Given the situation described identify the type of sampling

given the situation described. identify the type of sampling involved. at a newspaper office staffers are classified

  Value of test statistic to test claim p is less than value

Let p represent the population proportion of all numbers in the corporate file that have a first nonzero digit of 1. Test the claim that p is less than 0.301 by using What is the value of the test statistic?

  Approximation to the binomial distribution to determine

Use the normal approximation to the binomial distribution to determine (to four decimals) the probability of getting 7 heads and 7 tails in 14 flips of a balanced coin. Also refer to the binomial probabilities table of "Statistical Tables" to find..

  Find the percentage of women meeting the height

a survey found that womens heights are normally distributed with a mean 64.4 in. and a standard deviation 2.5 in. a

  Different types of budgets

What are some of the different types of budgets? Describe in detail one type of budget covered in the text. Describe what the budget is used for and what information it provides a business.

  Probability of drawing either a heart or a 6

If a single card is drawn from an ordinary deck of cards, what is the probability of drawing either a heart or a 6? (Answer in a fraction).

  Explain experimental or non-experimental study

Who are also athletes but who are not regularly hit in the heads. Is this an example of an experimental or a non-experimental study? Why?

  Describe the distribution of sample means

Describe the distribution of sample means (shape, expected value, and standard error) for samples of n=36 selected from a population with a mean of µ=100 and a standard deviation of σ=12.

  State the hypotheses to test the main effects of gender

For this example, what specific test might you use to test whether the average number of offspring has changed over the years? Why would you use this specific type of test? Describe a brief scenario where you may need to use nonparametric statistic..

  To buy a new manufacturing operation

If you are given a choice to decide whether to buy a new manufacturing operation of one of your competitors in order to expand business. The choices are to buy the complete operation, only the property, or not o buy anything. The results in Rands ..

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