User Account

All Pages

Normal distribution to calculate the proportion

Assignment Help Basic Statistics
Reference no: EM131236085

The maximum score on the assignment was 10 points. The distribution of scores on this assignment had a mean of 9.2 points and a standard deviation of 2.1 points. Would it be appropriate to use a normal distribution to calculate the proportion of students who scored below 7 points on this assignment? Explain.

Reference no: EM131236085

Questions Cloud

Discuss the factors that affect responsiveness : List at least three ways leaders can work with people who are less argumentative and people who are highly argumentative to enhance work communication. Discuss the factors that affect responsiveness. Give an example of several responding strategies
Determine the change in elevation of the piston : The piston and cylinder are poor thermal conductors and friction can be neglected. Determine the change in elevation of the piston, in ft.
How did usa lock in its power structure after world war2 : How did USA lock in its power structure after world war2 - How did those structure added up to the establishment of the state of Israel?
What is the probability at least one red ball is chosen : Six balls are to be randomly chosen from an urn containing 8 red, 10 green, and 12 blue balls. (a) What is the probability at least one red ball is chosen?
Normal distribution to calculate the proportion : The distribution of scores on this assignment had a mean of 9.2 points and a standard deviation of 2.1 points. Would it be appropriate to use a normal distribution to calculate the proportion of students who scored below 7 points on this assignmen..
Is it reasonable to proceed with the anova : The pairwise post hoc tests indicate which quality groups' means are statistically significantly different for the others. Using the results of the Tukey HSD post hoc test, what two quality rating groups had significantly different mean alcohol by..
Determine the net rate power is developed : A power cycle receives energy by heat transfer from the combustion of fuel at a rate of 300 MW. The thermal efficiency of the cycle is 33.3%.
Write letter of proposal to local retailer to carry product : Write a letter of proposal to a local retailer to carry a specific product or provide a specific service. Gather data from friends, family, coworkers and other target market consumers to justify the need for the product in this specific retail loc..
Relationship between the observed and expected values : 1. What can we learn through examination of the relationship between the observed and expected values with regard to the magnitude of the chi square value.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Multiple regression model

where the deviations εi are assumed to be independent and Normally distributed with mean 0 and standard deviation σ. This model was fit to the data using the method of least squares. The following results were obtained from statistical software.

  Which of the statement is true under the normal curve

The area under a normal curve is always equal to 1, no matter what the mean and standard deviation are.

  Weekly demand for fgh products

a. What is the probability that the weekly demand for FGH products will exceed the level at 688? (mean 625, standard deviation of 225)

  Confidence intervals for estimation of population mean

The mean age of a sample of 60 students from a class was found out to be 25.3 years. The variance in population age was 16 years.

  Determine a 95 percent confidence interval estimate

An electric scale gives a reading equal to the true weight plus a random error that is normally distributed with mean 0 and standard deviation    σ = .1 mg. Suppose that the results of five successive weighings of the same object are as follows: 3..

  What are the mean and standard deviation

What are the mean and standard deviation for the superintendent's district? What are the mean and standard deviation for the comparison district? State an appropriate null hypothesis for this analysis

  Worked on the project on a part-time basis

The senior management of Apex Medical Centre decided to procure and implement a new system that would reduce the cost and improve the value and service of its employee benefits coverage.

  Carbon dioxide or methane correlates best

Find out the regression variable that correlates best.  Among which regression variable, carbon dioxide or methane correlates best with the earth's surface temperature.

  Expected winnings for a single ticket buyer

What are the expected winnings for a single ticket buyer? Express to at least three decimal place accuracy in dollar form (as opposed to cents).

  What is the standard error of estimate

What is the standard error of estimate? Interpret it’s value, . Describe how well the memory test scores and length of television commercial are linearly related

  Find percentage of data values that will fall in range

The average labor charge for automobile mechanics is $54 per hour. The standard deviation is $4. Using Chebyshev's theorem, find the percentage of data values that will fall in the range of $48 to $60.

  How is business analytics different from business intelligen

How is business analytics different from Business Intelligence and What type of customers have a higher chance of buying a personal equity plan (pep=YES)? What types of customers have a lower chance of buying a personal equity plan?

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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