Squares estimates of the slope and intercept

Assignment Help Basic Statistics
Reference no: EM132075177

Consider the simple linear regression model y = 50 + 10 x + e where e is NID (0, 16). Suppose that n = 2 0 pairs of observations are used to ? t this model

Generate 500 samples of 20 observations, drawing one observation for each level of x = 1 , 1.5, 2, . . . , 10 for each sample.

a. For each sample compute the least - squares estimates of the slope and intercept. Construct histograms of the sample values of ˆ ß 0 and ˆ ß 1. Discuss the shape of these histograms.

b. For each sample, compute an estimate of E ( y | x = 5). Construct a histogram of the estimates you obtained. Discuss the shape of the histogram.

c. For each sample, compute a 95% CI on the slope. How many of these intervals contain the true value ß 1 = 1 0? Is this what you would expect? d. For each estimate of E ( y | x = 5) in part b, compute the 95% CI. How many of these intervals contain the true value of E ( y | x = 5) = 100? Is this what you would expect? Use R software.

Reference no: EM132075177

Questions Cloud

Analyse the relationship of a countrys economy : Analyse the relationship of a country's economy and its currency. Other things being equal, explain with examples the impact of a weak home currency.
Calculate the accumulated value of the reinvested coupons : Today is 1 January 2018. Sue just purchased a 10-year 4.5% p.a. Treasury bond with a face value of $100 at the yield rate of j2 = 4.3% p.a.
What is wallace income tax payable at december : Wallace's tax rate for 2015 is 30 percent, and the enacted tax rate for 2016 and 2017 is 40 percent. What is Wallace's income tax payable at December 31, 2015
What are the major variables that drive the price of options : How effectively can we measure/capture the value of these variables? Is there a clear, "correct" approach to pricing options?
Squares estimates of the slope and intercept : For each sample compute the least - squares estimates of the slope and intercept. Construct histograms of the sample values of ˆ ß 0 and ˆ ß 1.
Do you see any of the type of financial institutions extinct : Provide a reflection of the course. What have you learned about financial institutions and markets' governance, regulations, and risk, among others?
Display the data with a stemplot : Running times (in minutes) of 29 movies currently showing in early December 2004 are listed here, from a 73-minute European film called
When is it appropriate to use the one-sample z test : When is it appropriate to use the one-sample Z test? 2. What's with the z in Z test? What similarity does it have to a simple z or standard score?
Develop a researchable set of hypotheses : Utilizing any available disclosed database for SPSS, develop a researchable set of hypotheses related to the database.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Number of women who arrived over the same period

What is the average number of women who arrived over the same period?

  Describe nature-extracurricular activities and performance

Calculate percentages that describe the nature of the relationship between time spent on extracurricular activities and performance in the course.

  Association of realtors 44 of us homes sold in march 2010

acording to the national association of realtors 44 of u.s. homes sold in march 2010 wre purchased by first time home

  A civil engineer is analyzing the compressive strength of

a civil engineer is analyzing the compressive strength of concrete. compressive strength is approximately normally

  How do you calculate a zscore with a two-sided specification

I have a lower spec limit of -0.008 and an uppers spec limit of 0.008. The mean of the data is -0.00306 and standard deviation is 0.003642. What is the z-score and DPMO

  Appropriate hypothesis test

The survey described in the previous exercise also asked the following question: "Please tell me whether you trust the President to do the right thing

  Profit payoff table-expected value

For the profit payoff table below, the decision maker assumes that P(s1) = .15, p(s2) = .50, and p(s3) = .35.

  British granted self-government

In 1981, after more than 300 years of colonial presence in Central America, the British granted self-government to what country?

  Find the probability of a random graph with n vertices

Suppose that P is a monotone increasing property of simple graphs. Show that the probability a random graph with n vertices has property P is a monotonic.

  What is the probability of getting the deal

It is estimated that the competitor will submit a bid for the contract with probability 0.40. What is the probability of getting the deal?

  A control chart for fraction nonconforming indicates that

a control chart for fraction nonconforming indicates that the current process average is 0.03. the sample size is

  Suppose a point xy is chosen at random from the disk x2 y2

suppose a point xy is chosen at random from the disk x2 y2 is less than and equal to 1. find the a marginal density of

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