Explain why confidence interval is larger

Assignment Help Basic Statistics
Reference no: EM13156995

A sample of 35 golfers showed that their average score on a particular golf course was 80 with a standard deviation of 10.
Answer each of the following (show all work):

(A) Find the 99% confidence interval of the mean score for all 35 golfers.
(B) Find the 99% confidence interval of the mean score for all golfers if this is a sample of 50 golfers instead of a sample of 35.
(C) Which confidence interval is larger and why?

Reference no: EM13156995

Questions Cloud

Why is necessary to digest a plasmid : why is necessary to digest a plasmid with individual restriction enzymes first, then follow with a combination of digestions?
Distinguish between assigned and emergent leaders : Distinguish between assigned and emergent leaders. Give an example of each. Define the five components of power as setforth in the textbook. Please give an example of each.
Overapplied to cost of goods sold : Actual manufacturing overhead by year-end totaled $233,000. Rockville adjusts all under- and overapplied to cost of goods sold.
What is the pheonotipic variance : What is the pheonotipic variance?
Explain why confidence interval is larger : Find the 99% confidence interval of the mean score for all golfers if this is a sample of 50 golfers instead of a sample of 35. Which confidence interval is larger and why?
Main sources of destructive fires : Identify and explain the main sources of destructive fires and associated preventive measures.
Calculate the amount of heat required : Calculate the amount of heat required to raise the temperature of 72 g of H2O from 23 degrees celcius to 115 degrees celcius
Estimated demand function for one-month memberships : Interpret the estimated demand function for one-month memberships and calculate the point price elasticity of demand and point income elasticity of demand in Town D at the price charged last year.
Specific elements of picasso guernica : Describe specific elements of Picasso's Guernica and explain how effective you think the painting is as a protest against the horrors of war.

Reviews

Write a Review

Basic Statistics Questions & Answers

  The possibility that nucleus will be disintegrated the end

The number of bombardment necessary to achieve the disintegration of a certain nucleus is assumed to have the distribution above. In one sequence in which b bombardments are available, of these have already failed to disintegrate the nucleus. What..

  Describe bankten compares with other banks

Create a frequency distribution and histogram for this variable, and calculate the mean, median, and standard deviation. Describe how BankTen compares with other banks in terms of profits per employee.

  Linear regression relationship analysis

Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0.

  Determining npv and probability

A four-year financial project is forecast to have net cash inflows of $20,000; $25,000; $30,000; and $50,000 in the next four years. It will cost $75,000 to implement the project

  Dental expenses of all employees of the company

Determine the point estimate and 95% confidence interval for the mean family dental expenses of all employees of the company.

  How to conclude that mean weight is less than nine grams

A machine is set to fill a small bottlewith 9gram of a medicine. A sample of 8 bottles revealed the following amount (g) in each bottle. At the .01 sig level, can we conclude that the mean weight is less than 9 grams?

  Test for the significance of the slope

Below you are given a partial computer output based on a sample of 21 observations, relating an independent variable (x) and a dependent variable (y).

  Find fraction of batteries that are expected to fail

The time to failure of a nickel-cadmium battery is Weibull-distributed with parameters v=0 α = 1/2 years and β = 1/4. Find the fraction of batteries that are expected to fail prior to 1.5 years.

  Identification of parametric and nonparametic data

A manufacturer produces a batch of memory chips (RAM) and measures the mean-time-between-failures (MTBF). The manufacturer then changes a manufacturing process and produces another batch and again measures the MTBF.

  Population mean on the basis of the sample mean

Estimating the value of the population mean on the basis of the sample mean alone produces a(n):

  Interpretation of regression coefficients-r square

What is the interpretation of the coefficients that emerge from the regression equation. Can you predict a change in the y variable given knowledge of the x variable?

  Test for differences in variance

Randomly selected statistics students were given five seconds to estimate the value of a product of numbers with a summary of the results of both groups given below.

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