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

In a poll of 2003 adults within the united states for the

In a poll of 2,003 adults within the United States for the Wall Street Journal, 57% of adults said that public education needs to be improved. Construct a 95% confidence interval for the proportion of all U. S. adults wh ...

1 consider a test of h0 mu le 100 versus h1 mu gt 100

1. Consider a test of H0 : μ ≤ 100 versus H1 : μ > 100. Suppose that a sample of size 20 has a sample mean of X = 105. Determine the p-value of this outcome if the population standard deviation is known to equal  (a) 5; ...

1 what are time-series research designs and how are they

1. What are time-series research designs, and how are they used to learn about changes in behavior over time? 2. What types of independent variables can be used in participant-variable research designs, and what conclusi ...

Otto is trying out for the javelin throw to compete in the

Otto is trying out for the javelin throw to compete in the Olympics. The lengths of his javelin throws are normally distributed with a mean of 310 feet and a standard deviation of 13 feet. What is the probability that th ...

Suppose that a ge 3 and let f be a social welfare function

Suppose that |A| ≥ 3, and let F be a social welfare function satisfying the properties of unanimity and independence of irrelevant alternatives. What are all the decisive coalitions?

Satistics project come up with a survey pick a population

Statistics Project: Come up with a survey: Pick a population Come up with 4 variablesà 2 Quantitative & 2 Qualitative (make up numbers) Pick 50 data points for each variable, make a table on excel, use a scatter plot gra ...

Problem 1 part i hypothesis testingconduct a one-tailed

Problem 1: PART I. HYPOTHESIS TESTING Conduct a one-tailed hypothesis test given the information below. A manufacturer wants to increase the shelf life of a line of cake mixes. Past records indicate that the average shel ...

Examine the history of american party politics from the

Examine the history of American party politics from the Great Depression through the 1990s. Trace the evolution of the major political parties, their policies, and their constituencies during this period.

1 distinguish between theory model and hypothesis2 describe

1. Distinguish between theory, model, and hypothesis. 2. Describe how researchers use induction versus deduction to generate research hypotheses. 3. Describe the process by which hypotheses are developed and tested.

Asume that you plan to use a significance level of alpha

Assume that you plan to use a significance level of α = 0.05 to test the claim that p1 = p2. Use the given sample sizes and numbers of successes to find the P-value for the hypothesis test. n1 = 50 n2 = 50 x1 = 8 x2 = 7

  • 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