Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

A researcher is interested in estimating the noise levels in decibels at the area urban hospitals. She desires to be 99% confident that her estimate is correct. If the standard deviation is 4.8, how large the sample is required to get the desired information to be accurate in 0.60 decibels? Show all work.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M917267

Have any Question? 


Related Questions in Statistics and Probability

One of the initial clinical trials of the anti-math anxiety

One of the initial clinical trials of the anti-math anxiety drug SHOVITALL TM tested for the presence of headaches as a side effect. In the trial, 450 subjects were treated with 80mg of the drug, and 2.2% of the subjects ...

Module assignmentthe paired data below consists of test

Module Assignment The paired data below consists of test scores and hours of preparation for 5 randomly selected students. Use this data set to answer the questions below: x Hours of preparation   5    2    9   6   10 y ...

The average batter life of the iphone 4s is reported to be

The average batter life of the iPhone 4S is reported to be 6.0 hours by Apple. Assume that the population standard deviation for the better life for this cell phone is 30 minutes. A random sample of 50 iPhones had an ave ...

1 what is the difference between a stratum and a cluster2

1. What is the difference between a stratum and a cluster? 2. What is the drawback of obtaining random samples by telephone? 3. In what way would the use of sampling improve the accuracy of the United States census?

A survey of 68 courses delivered fully online found a mean

A survey of 68 courses delivered fully online found a mean of 13.5 videos with a standard deviation of 2.81. You can assume that the number of videos in an online course is normally distributed. Find the 89% confidence i ...

A box of teddy grahams chocolate cookies is supposed to

A box of Teddy Grahams chocolate cookies is supposed to weigh 250 grams. There is some variation in weight from box to box. The box contents are Normally distributed with an unknown mean and a known standard deviation of ...

Christine has always been weak in mathematics based on her

Christine has always been weak in mathematics. Based on her performance prior to the final exam in Calculus, there is a 45% chance that she will fail the course if she does not have a tutor. With a tutor, her probability ...

A family is relocating from st louis missouri to california

A family is relocating from St. Louis, Missouri, to California. Due to an increasing inventory of houses in St. Louis, it is taking longer than before to sell a house. The wife is concerned and wants to know when it is o ...

1 in a pulse rate research a simple random sample of 120

1. In a pulse rate research, a simple random sample of 120 men results in a mean of 80 beats per minute, and a standard deviation of 11 beats per minute. Based on the sample results, the researcher concludes that the pul ...

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 ...

  • 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