User Account

All Pages

Population standard deviation

Assignment Help Basic Statistics
Reference no: EM131726048

A book about college reports that the mean time students study each week is 1015 minutes. A dean says she believes the mean is greater than 1015 minutes. Suppose she takes a random sample of 64 students and finds that the sample mean is 1050 minutes. Assume the population standard deviation is 150 minutes. Test the deans claim at α 0.05 .

Reference no: EM131726048

Questions Cloud

Explain how to solve a homework problem : Jan is a member of a class with 20 students that meets daily. Each day for a week (Monday to Friday), a student in Jan's class is randomly selected to explain.
Explain understanding scope of transatlantic slave trade : Understanding the size and scope of the transatlantic slave trade is important fora complete appreciation of the development of the institution of slavery.
Normal with equal variances : Assume that the samples are independent simple random samples and that both populations are approximately normal with equal variances.
Explain how can determine the probabilities : Find information on a random circumstance in the news. Identify the circumstance and possible outcomes, and assign probabilities to the outcomes.
Population standard deviation : Assume the population standard deviation is 150 minutes. Test the deans claim at a 0.05.
Identify the random circumstances in the given story : It was Robin's birthday and she knew she was going to have a good day. She was driving to work, and when she turned on the radio, her favorite song was playing.
Regression model using all of the independent variables : A business statistics professor would like to develop a regression model to predict the final exam scores for students based on their current? GPAs
What is the probability that household will be selected : Suppose that you live in a city that has 125,000 households with telephones and a polling organization randomly selects 1000 of them to phone for a survey.
Write a paper about unemployment and the great depression : Write a paper about Unemployment and the Great Depression. Numerous specific examples demonstrate detailed knowledge of relevant history.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Skewed distribution instead of a normal distribution

If you assume returns follow a normal distribution, which investment would give a better chance of getting at least a $40 million return? Explain. (B) How could your answer to part (A) change if you knew returns followed a skewed distribution inst..

  Determine the expected value of the bonus

The total losses, say X, divided by the total premiums, say T. The bonus equals (0.5 - L)(T/30) if L

  Confidence interval for the true variance in height

Find a 95% confidence interval for the true variance in height for natural rice plants.- Find a 95% confidence interval for the true variance in height for genetically engineered rice plants.

  Find probability of being outside the interval 515 to 600

Use the answer to given Question in given Example to find the probability of being outside the interval 515 to 600.- What is the probability that a randomly selected test-taker scored between 515 and 600?

  What is the standard error of estimate for regression model

The National Football League (NFL) is arguably the most successful professional sports league in the United States.

  Determine a the temperature in the tank at the time when

a well-insulated rigid tank of volume 10 ft3 contains carbon dioxide initially at 30 psia and 60 degrees f. the tank is

  Perform the appropriate one-tailed test

If the population mean is 36, are the serial killers significantly more introverted at the .05 level? Perform the appropriate one-tailed test.

  Which of the elements of the code was the easiest

Which of the elements of the code was the easiest to locate information on in regard to your selected test.

  Identify the dilemmas as either constructive or destructive

Identify the following dilemmas as either constructive or destructive.- If we build our home in the valley, it will be struck by floods;

  From a christian worldview what is greed is greed just

from a christian worldview what is greed? is greed just referring to money? what other items could greed be referring

  A negative relationship between an explanatory variable x

a negative relationship between an explanatory variable x and a response variable y means that as x increases y

  Randomized controlled trail of anew drug for pain management

Randomized Controlled Trail of a New Drug for Pain Management

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