Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

According to the recent survey, Americans get the mean of seven hours of sleep per night. A random sample of 50 students at the West Virginia University revealed the mean number of hours slept last night was six hours and 48 minutes (6.8 hours). The standard deviation of sample was 0.9 hours. Is it reasonable to conclude that students at the West Virginia sleep less than typical American? Evaluate the p-value.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M917745

Have any Question? 


Related Questions in Statistics and Probability

An alternative to the experiment in q3 to investigate

An alternative to the experiment in Q.3 to investigate whether loud music tends to increase the time it takes mice to complete a maze would involve randomly assigning say, 50 mice to two groups. The 25 mice in Group A (c ...

At a factory that produces pistons for cars machine 1

At a factory that produces pistons for cars, Machine 1 produced 711satisfactory pistons and 79 unsatisfactory pistons today. Machine 2 produced 630 satisfactory pistons and 270 unsatisfactory pistons today. Suppose that ...

1 what are the most important threats to validity that

1. What are the most important threats to validity that occur in quasi experimental research designs when the research is conducted over a period of time? What techniques can be used to minimize these potential interpret ...

Nicollette joined towson university basketball team since

Nicollette joined Towson University basketball team since summer 2015. On average, she is able to score 30% of the field goals. Assume she tries 15 field goals in a game. (a) Let X be the number of field goals that Mimi ...

The mean incubation time for a type of fertilized egg kept

The mean incubation time for a type of fertilized egg kept at 100.7° F is 22days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 2 days. (a) The probability that a r ...

Define the confounds in the following list and tell why

Define the confounds in the following list and tell why each confound undermines the internal validity of an experiment: a. biased assignment of participants to conditions b. differential attrition c. pretest sensitizati ...

Activity first digit phenomenona descriptive statistical

Activity: First Digit Phenomenon A Descriptive Statistical Discovery Instruction Sheet Introduction: Statisticians divide their subject into two major branches. Descriptive Statistics: Based on the concepts and methods n ...

A teacher rated the reading ability level of six fourth

A teacher rated the reading ability level of six fourth grade children in a special math program. The reading level ratings were as follows: 3, 3, 2, 8, 4, and 4. a. Compute the mean, variance, and standard deviation (by ...

A car salesmen claims that a particular make of a car would

A car salesmen claims that a particular make of a car would give a mean mileage of greater than 20mpg. If I ran 10 cars on one gallon of gas each and came up with 10 different results, what statistical formula would I us ...

A gallup poll claims that at least 60 of adults in the

A Gallup poll claims that at least 60% of adults in the United States have used the Internet for shopping. In a survey of 1,025 randomly selected adults in the U.S., 678 said that they have used the Internet for shopping ...

  • 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

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

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen