Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

The Human Relations Department of Electronics, Inc, would like to comprise a dental plan as part of benefits package. The problem is: How much does a typical employee and his or her family spends for each year on dental expenses? A sample of 45 employee reveals the mean amount spend last year was $1,820, with the standard deviation of $ 660.

a. Develop a 95 percent confidence interval for population mean.

b. The information from part (a) was given to president of Electronics, Inc. He points out he could afford $1,700 of dental expenses per employee. Is it possible that population mean could be $1,700? Justify your answer.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921099

Have any Question? 


Related Questions in Statistics and Probability

A researcher collected sample data for women ages to the

A researcher collected sample data for women ages to. The sample had a mean serum cholesterol level (measured in mg/100 mL) of , with a standard deviation of. Assuming that serum cholesterol levels for women ages to are ...

Tables or graphsusing the internet the text or another

Tables or Graphs Using the Internet, the text, or another reliable source such as a newspaper or periodical site, (not a scholastic or school site like Khan Academy and not Wikipedia), research some important data that h ...

1 what can researchers do to minimize error variance2

1. What can researchers do to minimize error variance? 2. Discuss the trade-off between internal and external validity. Which is more important? Explain.

In january 2011 the average monthly rental rate for

In January 2011, the average monthly rental rate for one-bedroom apartments in a certain city was $783. Suppose rental rates across all one-bedroom apartments in this city follow approximately a normal distribution, with ...

In a survey of 617males agesnbsp18-64 396 say they have

In a survey of 617males ages 18-64, 396 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the co ...

Please show the work step by step to make it

Please show the work step by step to make it understandable. A random sample of 16 students showed that the variance in the number of hours they spend studying for a final exam was 25 hours 2 Part a. Construct a 95% conf ...

The probability that a light bulb of a given brand is

The probability that a light bulb of a given brand is faulty is .1. You want to find the probability that fewer than 5% of a shipment of 1000 light bulbs is faulty. Use the Binomial Distribution to determine this.

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 ...

Gary is at the top of gails preference list and gail is at

Gary is at the top of Gail's preference list, and Gail is at the top of Gary's preference list. Prove that in every stable matching Gary and Gail are matched to each other.

Case study diets and weight lossnbspa study innbspthe

CASE STUDY Diets and Weight Loss  A study in The Journal of the American Medical Association describes the effects of diets on weight control. In the study, 311 women were randomly divided into four groups. The first gro ...

  • 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