Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

1. According to Chebyshev's theorem, proportion of values from data set that is further than two standard deviations from mean is at most:

A. 0.50    

B. 0.13

C. 1.00

D. 0.25

2. In the study of elephants a researcher wishes to find out the average weight of the certain subspecies of elephants. From previous studies, the standard deviation of weights of elephants in this subspecies is known to be 1500 pounds. How many elephants does the researcher require to weigh so that he can be 80% confident that the average weight of elephants in his sample is in 350 pounds of true average weight for this subspecies?

A. 31       

B. 39       

C. 50       

D. 166     

3. A snack food manufacturer chosen a sample of 15 bags of pretzels off the assembly line and weighed their contents. If the sample mean is 10.0 and sample standard deviation is 0.15, find out the 95% confidence interval estimate for true mean weight of bags of this kind of pretzel.

A. (9.92, 12.34)   

B. (8.54, 11.46)

C. (10.42, 10.58)

D. (9.92, 10.08)

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922659

Have any Question? 


Related Questions in Statistics and Probability

The number of credits being taken by a sample of 13

The number of credits being taken by a sample of 13 full-time college students are listed below. Find the mean, median, and mode of the data, if possible. If any measure cannot be found or does not represent the center o ...

Describe secretary of state john quincy adamss address to

Describe Secretary of State John Quincy Adams's Address to Congress, July 4, 1821. As a statement of American Foreign Policy, what does it assert? Do you think it accurately reflects American Foreign Policy up to that ti ...

Tell whether each of the following relationships reflects a

Tell whether each of the following relationships reflects a positive or a negative correlation: a. the amount of stress in people's lives and the number of colds they get in the winter b. the amount of time that people s ...

Bag i contains 3 white objects and 4 black objects and bag

Bag I contains 3 white objects and 4 black objects, and Bag II contains 2 white and 6 black objects. a) You pick an object randomly from Bag I and place it into Bag II. Next you pick an object randomly from Bag II. What ...

What were the causes of the cold war also describe the

What were the causes of the Cold War? Also, describe the steps that the USA took to meet the perceived Soviet threat during the 1940s, '50s and '60s. Be sure to include the following topics: Iran crisis of 1946 Iron Curt ...

The manager of a pizza chain in albuquerque new mexico

The manager of a pizza chain in Albuquerque, New Mexico, wants to determine the average size of their advertised 16-inch pizzas. She takes a random sample of 25 pizzas and records their mean and standard deviation as 16. ...

Random and independent samples of 80 recent prime time

Random and independent samples of 80 recent prime time airings from each of two major networks have been considered. The first network aired a mean of 110.7  commercials during prime time, with a standard deviation of 4. ...

Bob like peggy wants to know if his cookies are special but

Bob, like Peggy, wants to know if his cookies are special, but all he knows are the class average of 21.65 chips per cookie, and his own data for his 10 cookies: 12,14,15,12,12,13,17,15,15,22. Conduct all six steps of hy ...

Another simple question can you give me 3 points regarding

Another simple question, can you give me 3 points regarding to origins of the Cold War.

1 an investigator wants to determine if a new program aimed

1. An investigator wants to determine if a new program aimed at reducing the overall number of pregnancies in a highly populated area is effective (reducing average births below 6 per household). In order to carry out th ...

  • 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