Ask Question, Ask an Expert


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

Statistics paperthe final paper provides you with an

STATISTICS Paper The Final Paper provides you with an opportunity to integrate and reflect on what you have learned during the class. The question to address is: "What have you learned about statistics?" In developing yo ...

The population of lengths of aluminum-coated steel sheets

The population of lengths of aluminum-coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.3 inches. What is the probability that average length of a steel sheet from a sa ...

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, ...

What were the causes of the cold war also describe the

What were the causes of the Cold War? Also, describe the steps that the USA took to meet the perceived Soviet threat during the 1940s, '50s and '60s. Be sure to include the following topics: Iran crisis of 1946 Iron Curt ...

There are 1000 students in a high school among the 1000

There are 1000 students in a high school. Among the 1000 students, 150 students take AP Statistics, and 300 students take AP French. 100 students take both AP courses. Let S be the event that a randomly selected student ...

Two population meansa tomato farmer with a very large farm

Two Population Means A tomato farmer with a very large farm of approximately 2200 acres had heard about a new type of rather expensive fertilizer which would supposedly significantly increase his production. The frugal f ...

Data interpretationresearch reportyour taskwrite a report

Data Interpretation Research Report Your task: Write a report on the statistical relationship that you find between the stock price of the company that you have been assigned and the following three variables: the FTSE, ...

1nbspthe owner of a professional basketball team claims

1) The owner of a professional basketball team claims that the mean attendance at games is over 25,000 and therefore the team needs a new arena. Determine whether the hypothesis test for this claim is left-tailed, right- ...

Microsoft word - stat Microsoft Word - STAT Assignment 1.

Microsoft Word - STAT Assignment 1. Anationalrepresentativesurveyofstudentsingrades7-12askedaboutthe experience of these students with respect to sexual harassment. The students were asked whether or not they were harass ...

Suppose that a certain college class contains 42 students

Suppose that a certain college class contains 42 students. Of these, 23 are freshmen, 28 are history majors, and 8 are neither. A student is selected at random from the class. (a) What is the probability that the student ...

  • 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