Find the two lines of regression

Assignment Help Advanced Statistics
Reference no: EM13648177

Ques.1 i. Define Binomial, Poisson and Normal distribution.

  ii. Four cards are drawn at random from a pack of 52 playing cards. Find the probability of getting

a. all the four cards of the same suit

b. all the four cards of the same number

c. one card from each suit

d. two red cards and two black cards

e. all cards of the same colour

f. all face cards

Ques.2   The following table gives the aptitude test scores and productivity indices of 10 workers selected at random:

Aptitude scores(X) 60 62 65 70 72 48 53 73 65 82

Productivity index(Y) 68 60 62 80 85 40 52 62 60 81

Calculate the two regression equations and estimate

  1. The productivity index of a worker whose test score is 92
  2. The test score of a worker whose productivity index is 75

Ques.3 Discuss the different components of a time series and fit a trend line with the help of following data by using Free hand curve method and Semi-averages method:

Year 1993 94 95 96 97 98 99 2000 01 02 03 04

Profit 10 12 16 8 6 14 15 10 14 20 13 18

(Rs. in lakhs)

Case Study

The marks obtained by seven students in Statistics and Accountancy are as follows:

Age(X)  56 42 36 47 49 42 60 72 63 55

Blood 147 125 118 128 145 140 155 160   149 150

Pressure(Y)

  1. Given the form of the scattered diagram, does it appear that a straight line provides an accurate

  model for the data?

  1. Find the correlation coefficient between Age(X) and Blood Pressure(Y) and discuss its nature.
  2. Find the two lines of regression.
  3. Estimate the blood pressure of a woman whose age is 45

Reference no: EM13648177

Questions Cloud

A diverging lens with a focal length : A diverging lens with a focal length of -14 cm is placed10 cm to the right of a converging lenswith a focal length of 18 cm. An object is placed 31 cm to the left of the converging lens.
State potassium permanganate are needed to prepare solution : How many grams of potassium permanganate are required to prepare 2 qt of 1:750 solution of potassium permanganate
Second person pulls vertically upward on the crate : A crate with a weight of 50N rests on a horizontal surface. A person pulls horizontally on it with a force of 10N and it does not move. To start it moving, a second person pulls vertically upward on the crate. If the coefficient of static friction is..
What is the magnitude of the downward acceleration : A spring is attached to an overhead beam. If you put a mass of 17 0 g on it, and it proceeds to stretch a distance of 7 cm, What is the magnitude of the downward acceleration
Find the two lines of regression : Find the correlation coefficient between Age(X) and Blood Pressure(Y) and discuss its nature and find the two lines of regression.
Capacitor-battery and resistor are connected in series : When a capacitor, battery, and resistor are connected in series, does the resistor affect the maximum charge stores on the capacitors? Why or why not? What purpose does the resistor serve?
Compute the mean and standard deviation : Form a frequency distribution having 9 class intervals and form a percentage distribution from the frequency distribution (from part a) - Compute the mean, standard deviation and Coefficient of variation
Distance 3d from the other charge-what is its kinetic energy : Two equal charges Q are separated by a distance d. One of thecharges is released and moves away from the other due to the forcesbetween them. When the moving charge is a distance 3d from theother charge, what is its kinetic energy?
Determine at what angle is the first maximum located : In a location where the speed of sound is 330 m/s, a 2000 Hz sound wave impinges on two slits 30cm apart. At what angle is the first maximum located

Reviews

Write a Review

Advanced Statistics Questions & Answers

  Relationship between speed, flow and geometry

Write a project proposal on relationship between speed, flow and geometry on single carriageway roads.

  Logistic regression model

Compute the log-odds ratio for each group in Logistic regression model.

  Logistic regression

Foundations of Logistic Regression

  Probability and statistics

The tubes produced by a machine are defective. If six tubes are inspected at random , determine the probability that.

  Solve the linear model

o This is a linear model. If your model needs a different engine, then you need to rethink your approach to the model. Remember, there are no IF, Max, or MIN statements in linear models.

  Plan the analysis

Plan the analysis

  Quantitative analysis

State the hypotheses that you are going to test.

  Modelise as a markov chain

modelise as a markov chain

  Correlation and regression

What are the degrees of freedom for regression

  Construct a frequency distribution for payment method

Construct a frequency distribution for Payment method

  Perform simple linear regression

Perform simple linear regression

  Quality control analysis

Determining the root causes

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