Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Answer all the problems. You might use illustrations and diagrams to enhance explanations.

problem1) In the study on a cost living index for the particular year in the city, following weekly observations were made.

Cost of living index(Rs.)    140-150    150-160    160-170    170-180    180-190    190-200
Number of Weeks                5                 10            20              9                6                2

Draw the histogram and the frequency polygon on a same scale

problem2) The following table gives distribution of students and also regular players among them, according to age groups. Is there any correlation between ages and playing habits?

Age of groups(Years)             15-16    16-17    17-18    18-19    19-20    20-21
Number of Students                 200       270        340        360       400      300
Number of Regular players        150       152       170        180       180       120

problem3) Following data are given for marks in the subject A and B in the certain examination :

                                   SUBJECT A     SUBJECT B
    MEAN MARKS             36                 85
STANDARD DEVIATION    11                 8

    Coefficient of correlation between A and B = ±0.66       

i)  Determine the two equations of regression

ii) find out the expected marks in A corresponding to 75 marks obtained in B.

problem4) Drilling machine bores holes with the mean deviation of 0.5230 cm and the standard deviation of 0.0032 cm. Compute 2-sigma and 3-sigma upper and lower control limits for means of samples 4 and make a control chart.

problem5) Construct 5- yearly moving averages from the following data

YEAR    2000    2001    2002    2003    2004    2005    2006    2007    2008    2009    2010    2011    2012
SALE    105       107      109       112     114      116      118      121      123      124      125      127      129

problem6) In 120 throws of a single dice, following distribution of faces was observed.

FACES    1       2      3     4      5      6     TOTAL
F0         30    25    18    10    22    15     120

From the given data, verify that hypothesis “dice is biased” is acceptable or not.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M92173

Have any Question? 


Related Questions in Statistics and Probability

A prospective purchaser wishes to estimate the mean dollar

A prospective purchaser wishes to estimate the mean dollar amount of sales per customer at a toy store located in an airport terminal. Based on data from other similar airports, the standard deviation of such sales is ab ...

1 what are the four basic goals of behavioral research2

1. What are the four basic goals of behavioral research? 2. Distinguish between basic and applied research. In what ways are basic and applied research interdependent?

Activity first digit phenomenona descriptive statistical

Activity: First Digit Phenomenon A Descriptive Statistical Discovery Instruction Sheet Introduction: Statisticians divide their subject into two major branches. Descriptive Statistics: Based on the concepts and methods n ...

1 how can partial correlation help researchers explore

1. How can partial correlation help researchers explore possible causal relationships among correlated variables? 2. When is the Spearman rank-order correlation used? 3. What is a dichotomous variable? What correlations ...

1 what is a restricted range and what effect does it have

1. What is a restricted range, and what effect does it have on correlation coefficients? How would you detect and correct a restricted range? 2. How do we know whether a particular score is an outlier?

Recommendationsremember that your recommendations should be

Recommendations: Remember that your recommendations should be as authentic to a real-world situation as possible. If you are going to be asking your organization to spend money on training, for example, your justificatio ...

A using the table of critical values of t in appendix a-2

a. Using the table of critical values of t in Appendix A-2, find the critical value of t for an experiment in which there are 28 participants, using an alpha level of .05 for a one-tailed test b. Find the critical value ...

In a recent survey of high school seniors a random sample

In a recent survey of high school seniors, a random sample of 1000 females showed that 650 were planning on pursuing a college degree, while a random sample of 1000 females showed that 600 were planning on pursuing a col ...

What is the estimate for the difference between

What is the estimate for the difference between ‘False-rejects' by Inspectors 2 and 5? 0.8 3.7 4.2 0.0 3.5

A sample size of 50 is selected from a normal distribution

A sample size of 50 is selected from a normal distribution having a mean of 95 and a standard deviation equal to 15. What is the probability of selecting a sample having a mean exceeding 100?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro