Population in bell shaped and symmetrical

Assignment Help Basic Statistics
Reference no: EM13102963

A population of data from a paper supply company is known to have a mean weight of 55 ounces per ream and a population standard deviation of 5 ounces. The population is known to be bell shaped and symmetrical. Which of the following statements is correct description given what we know from the empirical rule.

A. 68% of the reams will be within 50 and 70 ounces

B. 99.7% of the reams will be within 54 ounces and 56 ounces

C. 99.7% of the reams will be within 45 and 65 ounces

D. B and C

E. None of the above

Reference no: EM13102963

Questions Cloud

Information regarding rules of probability : A manager of a gasoline filling station is thinking about a promotion that she hopes will bring in more business to the full-service island. She is considering the option that when a customer requests a fill-up
Explain verbal communication between different gender : Explain verbal communication between you and close friend or romantic partner of other gender. Examine the extent to which you.
What are the distances of these three points from speaker a : Speakers A and B are vibrating in phase. They are directly facing each other, are 8.0 m apart, and are each playing a 76.0-Hz tone. The speed of sound is 343 m/s. On the line between the speakers there are three points where constructive interfere..
Find the potential energy stored in the spring : A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E = 49.2 J and a maximum displacement from equilibrium of 0.280 m.
Population in bell shaped and symmetrical : A population of data from a paper supply company is known to have a mean weight of 55 ounces per ream and a population standard deviation of 5 ounces. The population is known to be bell shaped and symmetrical.
Find the period of this motion : The position of an object connected to a spring varies with time according to the expression x = (4.4 cm) sin(6.9?t). (a) Find the period of this motion.
Introduction to probability distribution : At one Las Vegas casino, if you net $5 that a 12 will come up as the total points on two dice, and you win, you will get back $50. If any total other than 12 comes up, you get back $0.
Explain the significance of health service administrators : Students are to explain what they believe will be future of mental health services. Explain the significance of health service administrators in management of mental health services.
At what distance the electric field magnitude equal to e : A very long, straight wire has charge per unit length (lambda) . At what distance from the wire is the electric field magnitude equal to E ? How do you solve this problem?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Assessing p-value for the tastes of two types of wines

10 people taste wine A and wine B, X= denote the number prefer A. Assume that all others prefer B. These people random sample..

  Anova for number of cameras sold

What is the decision regarding the null hypothesis (is there a difference in the mean numbers of cameras sold at the three department store chains)?

  Evidence of difference in mean life of bulbs

Is there evidence of difference in mean life of bulbs produced by the two kinds of machines. What is your conclusion?

  Randomly selects without replacement

As part of his review for a chemistry test, a student randomly selects (without replacement) 40 out of 102 elements listed on the standard tables, and tries to guess their atomic numbers.

  Cluster sample of chocolate chip cookies

a) Explain why it would be hard to take a Simple Random Sample? b) Describe how to take a cluster sample of chocolate chip cookies.

  Probability of poisson distribution

Accidents at a chemical plant occur at a rate of 1.9 per month. Find: The expected number of accidents in a year? The probability of no accidents next month?

  Learning about the regression effect

A human resources director, on learning about the regression effect, decides to hire people who have been fired by their previous employer for poor performance.

  Observation randomly selected from the distribution

A random variable is normally distributed with a mean of 25 and a standard deviation of 5. If an observation is randomly selected from the distribution:

  Hypothesis-expected with random guessing

Test the hypothesis that the dogs did significantly better than what would be expected with random guessing.

  Test statistic and mean of a population

You have to determine that your cutoff value at level a = 0.05 is 1.645 when testing whether the mean of a population is significantly different from 1.5. If you calculate a test statistic of 1.8 what is the proper conclusion?

  Business research and statistical data analysis

Which two types of probability sampling are best suited for business research and statistical data analysis, and why?

  Properties of normal distribution

Which of the following statements isn't a property of the normal probability distribution? Please explain briefly why

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd