Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

problem 1:

a) If X is a Poisson variate and p(X = 3) > p(X = 2) then find out the minimum value of mean.

b) Ten individuals are selected at random, from a normal population and their weights (in kg) are found to be 63, 63, 66, 67, 68, 69, 70, 70, 71 and 71. In the light of this data set, test the claim that the mean weight in population is 66 kg at 5% level of significance.

c) I bought two packets of apples, 25 in each packet. The mean and standard deviation of weights of apples in the first packet are 235 and 3; and the mean and standard deviation for the second packet are 237.5 and 4. prepare the mean and standard deviation formulae for all the fifty apples and find out them.

problem 2:

a) A consumer research organization tests three brands of tires to see how many miles they can be driven before they must be replaced. One tire of each brand is tested in each of five kinds of cars. The results (in thousands of miles) are as shown below:

2302_computing ANOVA.jpg

find out the ANOVA and interpret your result. You might like to use the values given at the end.

b) Does each of the given statements pertain to an estimate or an estimator? If the statements pertains to an estimate is it an interval estimate or point estimates? If the statement pertains to an estimator prepare the estimator.

i) The head of a publishing company states that the firm’s physics textbook will sell around 9000 copies in 2012.
ii) A census prefers the median to the mean as a measure of central tendency for the income distribution of families in a standard metropolitan city.
iii) A stock market analyst who appears on the television program estimates that the price of a specific common stock will be between 50 and 60 at the end of six months.

problem 3:

a) What are the fundamental components that have an effect on the characteristic under consideration in the given time series data? Give short justification for your answer.

Number of cars produced month-wise by a car manufacturing company throughout April 2001 to March 2009.

b) In the study of how employed people spend their time. 161 people were asked what activity they liked most. The given table shows the number of employed men and women who mentioned work or social life as their favored activity.

2088_favored life activity.jpg

problem 4:

a) A building has 11 flats. The sample of 4 flats is to be selected by using:

i) Linear systematic sampling.
ii) Circular systematic sampling.

List out all the possible samples for each of such cases separately.

b) Determine the area under the curve between 10 and 12 for a normal process with mean 6 and standard deviation 4.

c) There are 1000 pages in a book out of which 100 pages are defective. Find out the probability that out of first 50 pages 10 pages will be defective?

problem 5:

a) A class of 10 students underwent a mathematics examination. The principal was interested in seeing the performance of the students with respect to their attendance in a semester. Data is as shown below:

788_performance data of student.jpg

i) Plot the scatter diagram.
ii) Draw the Regression line of y on x.
iii) Find out the predicted marks if a student attends 32 classes in a semester.

b) The number of defects in 20 pieces of cloth each of 100 meter length is shown below:

2, 1, 3, 3, 1, 6, 4, 3, 7, 10, 2, 2, 6, 4, 3, 2, 1, 5, 6, 4.

Draw the suitable control chart and interpret the outcome.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M92631
  • Price:- $65

Guranteed 36 Hours Delivery, In Price:- $65

Have any Question? 


Related Questions in Statistics and Probability

125 wordsexplain the history behind the black soldier of

125 words Explain the history behind the Black Soldier of the Civil War In this forum look beyond the book for information on specific units, soldiers and even the reasons for why Lincoln allowed the African American to ...

Suppose that x is a continuous random variable with pdf fxx

Suppose that X is a continuous random variable with pdf fx(x) = (lambda/2)e-lambda(abs(x)) for -infinity (question also attached for clarity)

1 compute pearsons r between the life satisfaction variable

1. Compute Pearson's r between the life satisfaction variable and the family income variable in Table 1. Test the r for statistical significance, and draw conclusions about the meaning of the test. 2. Compute a Pearson c ...

The annual commissions earned by sales representatives of

The annual commissions earned by sales representatives of Machine Products, Inc. a manufacturer of light machinery, follow the normal probability distribution.  The mean yearly amount earned is $40,000 and the standard d ...

One of the most famous labormanagement conflicts took place

One of the most famous labor/management conflicts took place in the 1902 Coal Strike in Pennsylvania. The strike brought the coalmine owner George Baer against the United Mine Workers Union, and led Theodore Roosevelt to ...

Assignmentsuppose that there are two candidates ie jones

Assignment Suppose that there are two candidates (i.e., Jones and Johns) in the upcoming presidential election. Sara notes that she has discussed the presidential election candidates with 15 friends, and 10 said that the ...

In a survey of 617males agesnbsp18-64 396 say they have

In a survey of 617males ages 18-64, 396 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the co ...

Locate the data set banksav and open it with spss follow

Locate the data set "Bank.sav" and open it with SPSS. Follow the steps in section 10.15 Learning Activity as written. Answer all of the questions in the activity based on your observations of the SPSS output. Type your a ...

250 -300 wordsexplain the history behind the black soldier

250 -300 words Explain the history behind the Black Soldier of the Civil War In this forum look beyond the book for information on specific units, soldiers and even the reasons for why Lincoln allowed the African America ...

Best ribs wishes to pay off a debt of 40000 in 7 years what

Best Ribs wishes to pay off a debt of $40,000 in 7 years. What amortization payment would they need to make each six months, at 6% interest compounded semiannually? (Use Table 12-2 from your text) $3,541.05 $3,910.63 $2, ...

  • 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

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

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen