Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

A random sample of 49 lunch customers was taken at the restaurant. The average amount of time customers in the sample stayed in restaurant was 33 minutes. From past experience, it is known that population standard deviation is 10 minutes.

a. Evaluate the standard error.

b. With 95% confidence, find out the margin of error?

c. Develop a 95% confidence interval for true average amount of time customers spent in therestaurant.

d. With 95% confidence, how large of sample would've to be taken to give a margin of error of 2.5 minutes or less?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921029

Have any Question? 


Related Questions in Statistics and Probability

Project -you must show all steps for the hypothesis testing

Project - You must show all steps for the hypothesis testing; use either the critical value approach or the p-value approach. 1) a) Choose one of the following quantitative variables from the data set: Age, Weight, Cell ...

Linear regression and the fitting-lineexercise 1 the

Linear Regression and the "fitting-line" Exercise 1: The following table shows how many weeks six persons have worked at an automobile inspection station and the number of cars each one inspected between 3 p.m. and 5 p.m ...

A history class is comprised of 6 female and 7 male

A history class is comprised of 6 female and 7 male students. If the instructor of the class randomly chooses 11 students from the class for an oral exam, what is the probability that 5 female students and 6 male student ...

On a 2-d regular not wrapped-around mesh a message from a

On a 2-D regular (not wrapped-around) mesh, a message from a source (X s , Y s ) is to be sent to a destination (X d , Y d ). If any shortest path can be used, what is the probability that the message follows the shortes ...

A women in the sample on average were as healthy as people

(a) Women in the sample, on average were as healthy as people nationally from both a physical and mental health perspective as indicated by the SD deviation of 10.0 and a mean of 50.0 based on the national average. (b) T ...

Regression analysiscalculate then explaininterpret the

Regression analysis Calculate then explain/interpret the following 14 tasks/tests using the dependent variable (labeled Y)(Sales) and the independent variables (labeled X1 (Calls), X2 (Time), and X3(Years)). Attached is ...

Three different brands of pain relief medication are

Three different brands of pain relief medication are available for minor aches and pains. It is of interest to know whether the mean time to relieve the pain differs from brand to brand. To find out, twelve individuals w ...

Jenks co partially refunded 180000 of its outstanding 10

Jenks Co. partially refunded $180,000 of its outstanding 10% note payable, made 1 year ago to Arma State Bank by paying $180,000 plus $18,000 interest (having obtained the $198,000 by using $52,400 cash and signing a new ...

Data were collected from three populations using a

Data were collected from three populations using a completely randomized design. The following describes the sample data: n1 = n2 = n3 =6 R1 = 55 R2 = 64 R3 = 78 Conducting a test of hypothesis to verify whether there is ...

A weight-loss company wants to statistically prove that its

A weight-loss company wants to statistically prove that its methods work. They randomly selected 10 clients who had been on the weight loss program for between 55 and 65 days. They looked at their beginning weights and t ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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