User Account

All Pages

Determining the population mean and standard deviation

Assignment Help Basic Statistics
Reference no: EM131880839

1.The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual.

For a sample of n=75, find the probability of a sample mean being greater than 220 if μ=219 and sigma σ=3.7

2.The heights of fully grown trees of a specific species are normally? distributed, with a mean of 67.0 feet and a standard deviation of 6.00 feet. Random samples of size 10

are drawn from the population. Use the central limit theorem to find the mean and standard error of the sampling distribution.

  • The mean of the sampling distribution is?
  • The standard error of the sampling distribution is?

3.The mean price of photo printers on a website is ?$232 with a standard deviation of ?$62. Random samples of size 31are drawn from this population and the mean of each sample is determined.

  • The mean of the distribution of sample means is?

4. Find the probability and interpret the results. If? convenient, use technology to find the probability. During a certain week the mean price of gasoline was ?$2.719 per gallon. A random sample of 36 gas stations is drawn from this population. What is the probability that the mean price for the sample was between ?$2.699 and ?$2.715 that? week? Assume σ=?$0.046

5. The mean height of women in a country? (ages 20-?29) is 64.4inches. A random sample of 70 women in this age group is selected. What is the probability that the mean height for the sample is greater than 65?inches? Assume σ=2.59

Reference no: EM131880839

Questions Cloud

Evaluate the progress of your new policing initiative : In your meeting, how will you respond concerning whether community policing is the panacea for the city's problems?
Explain the role and function of surveillance operations : Explain the role and function of surveillance operations. As some surveillance operations can last for several months or years
Difference between the average fuel economy of domestic : You are in the market for a new car. You want to check whether there is a significant difference between the fuel economy of mid-size domestic cars
Net incremental cash flows for capital budgeting project : Which of the following is not an adjustment made to NOPAT on the way to obtaining net incremental cash flows for a capital budgeting project?
Determining the population mean and standard deviation : Find the required probability and determine whether the given sample mean would be considered unusual.
The venn diagram has o represent both sets and universal set : Universal set is a set that "has everything" and could be presented as a rectangle "around" both sets (History and Science students)
What is the value of the bond : Flora Co.'s bonds, maturing in 9 years, pay 5 percent interest on a $1,000 face value. what is the value of the bond?
Discuss the threat of terrorism : Terrorism has become major issue facing law enforcement. Discuss the threat of terrorism and distinguish between domestic terrorism and international terrorism.
Calculate the plantwide overhead rate : ABC is a job-order costing manufacturer that uses a plantwide overhead rate based on direct labor hours. Estimations for the year include $800,000 in overhead.

Reviews

Write a Review

Basic Statistics Questions & Answers

  What is the smallest mean

what is the smallest mean μ that can be used so that at least 99.5% of all cans meet the regulation? - what is the probability that a typical can has at least 12 ounces?

  Conduct the relevant hypothesis test

Physical Sciences The lifetime of a fuel rod in a commercial light-water nuclear reactor is related to the internal pressure.

  Define fallacies for given argument related to the violence

Some campus romances are episodes plagued by violence. Therefore, some campus romances are not episodes plagued by violence.

  Discuss about the natural resources portfolio

Fidelity Investments' February 2007 prospectus compares the value of $10,000 invested in the S&P 500 versus its value invested in Fidelity's.

  Perform a standard task

An efficiency expert wants to determine whether the time an assembly worker requires to perform a standard task might be related to (1) the number of years on the job and (2) the score on a pre-employment aptitude test. The following data have bee..

  Accessible population in the researcher

The researcher has identified all first-year students at the researcher's institution, has determined his desired sample size, and has listed.

  Let x be the number of teams from sd on petes season

a sports league is making up their season schedule. the league has 12 teams with eight teams from la and the rest from

  Best scenario for the bank using a decision tree analysis

If there is an outage, there is a .05 probability that the resulting losses will be very large, approximately $ 80 million in lost earnings. Also, it is estimated that there is a .95 probability of only slight losses of around $ 1 million. What is..

  Probablity that first claim under warranty is tenth car sold

Rrequired service under the warranty. consider a new dealer. what is the probablity that the first claim under this warranty is the tenth car sold?

  Chances of winning the automobile by switching doors

When this has been done, you will be given the opportunity to switch doors; you will win whatever is behind the door you choose at this stage of the game.

  Normalize value conflicts

What does Mary Gentile mean by attempting to "normalize value conflicts" in one's work and career?

  True population proportion of consumers

Calculate the 95% confidence interval for the true population proportion of consumers who like the ads. Calculate the 90% confidence interval for the true population proportion of consumers who like the ads. You would like your margin of error to be ..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd