Is the standard deviation different from two

Assignment Help Basic Statistics
Reference no: EM131667930

Question: According to an avid aquarist, the average number of fish in a 20-gallon tank is 10, with a standard deviation of two. His friend, also an aquarist, does not believe that the standard deviation is two. She counts the number of fish in 15 other 20-gallon tanks. Based on the results that follow, do you think that the standard deviation is different from two? Data: 11; 10; 9; 10; 10; 11; 11; 10; 12; 9; 7; 9; 11; 10; 11

Reference no: EM131667930

Questions Cloud

What is the fertility rate : The number of births per woman in China is 1.6 down from 5.91 in 1966. This fertility rate has been attributed to the law passed in 1979 restricting births.
Explain chinas cultural influence on international relations : Write a research paper about China's Cultural Influence on International Relations. Bibliography ( Including the titles of the articles and books used).
Develop an integrated marketing communication plan : Using an Australian organisation one you want develop an Integrated Marketing Communication (IMC) Plan that will increase its brand awareness by 20%
How your view of jesus has changed : How your view of Jesus has changed, especially focusing on the image of the 'Jewish Jesus'; 2) why you think it is significant.
Is the standard deviation different from two : According to an avid aquarist, the average number of fish in a 20-gallon tank is 10, with a standard deviation of two. His friend, also an aquarist.
What stage of product life cycle is this e-platform in now : What stage of the product life cycle is this e-platform in now? What options are available for Relay Health to establish a differential advantage?
Narrative sections of the old testament : How is Israelite poetry different from other narrative sections of the old testament? Why right in poetry?
Find equation the number of students in a class : Emma's Extreme Sports hires hang-gliding instructors and pays them a fee of $50 per class as well as $20 per student in the class.
How would you assess moses behavior : The author reports this incident without comment. How would you assess Moses' behavior? Is it morally acceptable to kill an oppressor or someone.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Calculate the test statistic for random sample of bottles

A random sample of 32 bottles is selected, and the mean amount of water per 1 gallon can is found to be 0.995 gallon. Calculate the test statistic.

  Compute the descriptive stats for both men and women

Compute the descriptive stats for both men and women. Use the Data Analysis ToolPak. Compare the first place finishes for the men and women

  In 2010 a gallup poll surveyed 1016 households in the us

in 2010 a gallup poll surveyed 1016 households in the u.s about their pets. of those surveyed 599 said they had at

  Select a delegate and an alternate to represent

Three research departments have 7 ,9 , and 10 members, respectively. Each department is to select a delegate and an alternate to represent the department at a conference. In how many ways can this be done?

  Did you make about the distribution of the gpas at the

At one university, students are given z-scores at the end of the semester rather than the traditional GPAs. The mean and standard deviation of all students’ cumulative GPAs, on which the z-scores are based, are 2.7 and 0.5 respectively.

  Hypothesis testing using single factor anova

The results for college x was a mean of 5 hours and an estimated population variance of 2 hours: for college y, m= 4, s 2 =1.5; and for college Z, M= 6, s 2  =2.5 what should you conclude? Use the .5 level.

  Important information about graphing inequality

What is the slope? What is the y-intercept? Is the line dashed or solid? Is the area shaded below or above the line?

  Rolling a pair of fair die 10 times and recording the

rolling a pair of fair die 10 times and recording the number of times we get a 7. what is the probability of rolling

  What is the r value for the relationship between hamstring

1. what is the r value for the relationship between hamstring strength index 60degs and the shuttle run test? is this r

  Mean and standard deviation for the population of z-scores

A population with m = 85 and σ= 12 is transformed into z-scores. After the transformation, what are the values for the mean and standard deviation for the population of z-scores?

  Result is a sample size

Assume that the result is a sample size beyond what you can obtain. Use the compromise function to compute alpha and beta for a sample half the size. Indicate the resulting alpha and beta. Present an argument that your study is worth doing with the s..

  How large of a sample should you get

You wish to learn the proportion of MBA students that are female within 3%, and with 98% confidence. How large of a sample should you get?

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!

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