Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Hypothesis testing of single mean.

Last month the mean waiting time at the drive through window of a fast-food restaurant was 3.7 minutes. The franchise has installed a new course intended to reduce waiting time. After an installation, a random sample of 64 orders is selected. The sample mean waiting time is 3.57 minutes with a sample standard deviation of 0.8 minutes. At a 5 percent level of meaning, is there sufficient evidence that the population mean waiting time is now less than 3.7 minutes?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920297

Have any Question? 


Related Questions in Statistics and Probability

A citys mean minimum daily temperature in february is 27

A city's mean minimum daily temperature in February is 27 degrees F. Suppose the standard deviation of the minimum temperature in February is 4 degrees F and that the distribution of minimum temperatures in February is a ...

A psychologist measures units of change for a memory test

A psychologist measures units of change for a memory test after students are given an opportunity to sleep only four hours. The following change units were obtained: 7, -12, 4, -7, 3, -10. Find the a) mean, b) median, c) ...

A geologist collects hand-specimen sized pieces of

A geologist collects hand-specimen sized pieces of limestone from a particular area. A qualitative assessment of both texture and color is made with the following results. Is there evidence of association between color a ...

Restate each of the following research questions as

Restate each of the following research questions as questions about behavioral variability. a. Does eating too much sugar increase children's activity level? b. Do continuous reinforcement schedules result in faster lear ...

Peggy wants to know if her pack of cookies was

Peggy wants to know if her pack of cookies was statistically different from those of the rest of the class. She found out the average number of chips per cookie this year was 13.82 and the standard deviation for the clas ...

In a health insurance experiment performed in a super

In a health Insurance experiment performed in a Super Specialty Hospital 4 types of insurance categories patients are expected to occur in the proportion of 9: 3: 3: 1. The observed frequencies are 891 Insured and Surgic ...

In 4-5 paragraphs describe gender roles how they were

In 4-5 paragraphs describe gender roles (how they were influenced/changed) though out middle ages (with specific examples of people, years etc.)

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 ...

Mechanics hardware needs to accumulate 41000 in 3 years to

Mechanic's Hardware needs to accumulate $41,000 in 3 years to purchase new equipment. What sinking fund payment would they need to make at the END of each month, at 6% interest compounded monthly? (Use Table 12-1 from yo ...

What were the key events that marked the move toward

What were the key events that marked the move toward American Independence?

  • 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