Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

To find out the location and dispersion measures.

Consider the following population:

71

89

65

97

46

52

99

41

62

88

73

50

91

71

52

86

92

60

70

91

73

98

56

80

70

63

55

61

40

95

a) Find out the mean and variance.

Mean

71.23333

Sample Variance

326.392

b) Conclude the percentage of data values that fall in each of the following intervals:  x + -2s, x + -3s, x + -4s.

Evaluate these with the percentages specified by Tchebysheff's Theorem.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920856

Have any Question? 


Related Questions in Statistics and Probability

Following the rash of school shootings that occurred in the

Following the rash of school shootings that occurred in the late 1990s, some individuals suggested that violent video games were making children and adolescents more aggressive. Imagine that you obtained a sample of 150 ...

The time it takes to complete a standardized exam is

The time it takes to complete a standardized exam is normally distributed with a mean of 70 minutes and a standard deviation of 10 minutes. How much time should be allowed for the exam so that 80% of the students will fi ...

Using the table below compute the spearman rank correlation

Using the table below, compute the spearman rank correlation coefficient for the aggressiveness scores. Does this suggest that both twins tend to be similar in degrees of aggressiveness? Twin set 1 st  born aggressivenes ...

A gallup poll claims that at least 60 of adults in the

A Gallup poll claims that at least 60% of adults in the United States have used the Internet for shopping. In a survey of 1,025 randomly selected adults in the U.S., 678 said that they have used the Internet for shopping ...

1 should demand characteristics be eliminated or

1. Should demand characteristics be eliminated or strengthened in an experiment? Explain. 2. How do researchers detect and eliminate placebo effects? 3. What effect does error variance have on the results of an experimen ...

On a 2-d regular not wrapped-around mesh a message from a

On a 2-D regular (not wrapped-around) mesh, a message from a source (X s , Y s ) is to be sent to a destination (X d , Y d ). If any shortest path can be used, what is the probability that the message follows the shortes ...

Assume that population means are to be estimated from the

Assume that population means are to be estimated from the samples described. Use the sample results to approximate the margin of error and 95% confidence interval. Sample size equals=6464, sample mean equals=8282, sample ...

Problem 1 part i hypothesis testingconduct a one-tailed

Problem 1: PART I. HYPOTHESIS TESTING Conduct a one-tailed hypothesis test given the information below. A manufacturer wants to increase the shelf life of a line of cake mixes. Past records indicate that the average shel ...

1 explain the difference between rejecting and failing to

1. Explain the difference between rejecting and failing to reject the null hypothesis. In which case does a researcher conclude that the independent variable has an effect on the dependent variable? 2. Distinguish betwee ...

1 in may the mean price of gas in the buffalo area was 2714

1. In May, the mean price of gas in the Buffalo area was $2.714 per gallon with a standard deviation of $0.045. In a sample of 32 gas stations, what percentage will have a price per gallon of gas between $2.695 and $2.72 ...

  • 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