Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

The following frequency distribution reports electricity cost for sample of 50 two-bebroom apartments in albuquerque, new mexico throughout the month of May last year.

Electricity cost

Frequency

$80 upto $100

3

100 to 120

8

120 to 140

12

140 to 160

16

160 to 180

7

180 to 200

4

Total

50

  1. Estimate the mean cost.
  2. Estimate the standard deviation.
  3. Employ the empirical Rule to estimate the proportion of costs in two standards deviations of mean. What are these limits.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M917315

Have any Question? 


Related Questions in Statistics and Probability

Discuss the changes to european imperialism between the

Discuss the changes to European imperialism between the World Wars.

The time spentin days waiting for a kidney transplant for

The time spent(in days) waiting for a kidney transplant for people ages 35-49 can be approximated by the normal distribution, as shown in the figure to the right. (a) What waiting time represents the 99th percentile? (b) ...

A consumer advocacy group tested the on-air lifetimes a

A consumer advocacy group tested the "on-air" lifetimes a random sample of 241 cell phone batteries. The mean lifetime was 3.2 hours with a standard deviation of 0.1 hours. The lifetimes are approximately bell-shaped. Es ...

Consider the three alternative allocations of money m in an

Consider the three alternative allocations of money (m) in an economy composed of three people, with people labeled A, B, C, and alternative allocations labeled X, Y, Z. The values in the 9 cells are the moneys accruing ...

1 explain how you would use a manipulation check to

1. Explain how you would use a manipulation check to determine whether you successfully manipulated room temperature in a study of temperature and aggression. 2. Distinguish between an independent variable and a subject ...

The mean incubation time for a type of fertilized egg kept

The mean incubation time for a type of fertilized egg kept at 100.7° F is 22days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 2 days. (a) The probability that a r ...

Suppose we would like to determine if the typical amount

Suppose we would like to determine if the typical amount spent per customer for dinner at a new restaurant in town is more than $20.00. A sample of 49 customers over a three-week period was randomly selected and the aver ...

In a survey of 635 males ages 18-64399 say they have gone

In a survey of 635 males ages 18-64,399 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 con ...

Do we know what the founding fathers said about the

Do we know what the Founding Fathers said about the institution of slavery in the U.S Constituion? Is the U.S. Constitution pro-slavery, anti-slavery or ambivalent about slavery?

Assume that you want to test the claim that the paired

Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is μd = 0. Compute the value of the t test statistic. Round intermediate calculations to four decima ...

  • 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