User Account

All Pages

Historical grade distribution

Assignment Help Basic Statistics
Reference no: EM1396383

In the past, of all the students enrolled in "Basic Business Statistics" 10% earned A's 20% earned B's, 30% earned C's, 20% earned D's and the rest either failed or withdrew from the course. Dr Johnson is a new professor teaching "Basic Business Statistics" for the first time this semester. At the conclusion of the semester, in Dr. Johnson's class of 60 students, there were 10 A's, 20 B's, 20 C's, 5 D's and 5 W's or F's. Assume that Dr. Johnson's class constitutes a random sample. Dr Johnson wants to know if there is sufficient evidence to conclude that the grade distribution of his class is different than the historical grade distribution. Use a =.05 and .01 and perform a goodness of fit test.

Reference no: EM1396383

Questions Cloud

Can these important structures be target for cancer therapy : Is it possible that tubulin and microtubules contribute to the development of cancer? Could these important structures be targets for cancer therapy?
Lake death a foreseeable consequence of air condition : which caused circulatory failure also then death. The executor of Lake's estate sued the manufacturer of the air conditioner for damages resulting from breach of warranty. Was Lake's death a foreseeable consequence of the air conditioner's failure ..
Write advantages and detriments of current system in us : U.S. nonworking poor not being treated better than lowest-wage earners? Explain why or Why not? Write down the benefits and detriments of current system in U.S.?
What external structure of a gram negative cell will exclude : Upon doing a negative stain of unencapsulated gram-negative cells, a small halo will be seen around the cells. Why is this the case? What external structure of a gram negative cell will exclude the negative stain.
Historical grade distribution : Dr Johnson wants to know if there is sufficient evidence to conclude that the grade distribution of his class is different than the historical grade distribution. Use a =.05 and .01 and perform a goodness of fit test.
Odell also poppy sign a contract for the sale of odell pizza : Odell also Poppy sign a contract for the sale of Odell's Pizza Parlor to Poppy. The parties intend their written contract to be a final statement of most, but not all, of the terms of Odell must first buy the building from Quin
Determine dependent and independent variables : Give an example of how Regression Analysis can be used in your work to make a business decision. Give the dependent and independent variables.
Describe the structure of the semicircular canals : Describe the structure of the semicircular canals and explain how they provide a sense of angular acceleration.
How linear acceleration results in stimulation of hair cells : Describe the structure of the utricle and saccule and explain how linear acceleration results in stimulation of the hair cells within these organs.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Inventory policy over the policy currently being used

What is the minimum-cost order quantity for the shoes? What are the annual savings of your inventory policy over the policy currently being used by Keith?

  Population standard deviations-margin of error

The average age of the women was 36.97 with a standard deviation of 8.893. If a 95% confidence interval is calculated to estimate the difference between the two average ages, what is the margin of error? Assume both population standard deviations ..

  Selecting the appropriate sampling frame

he population consists of all 15 year olds living in the attendance district of a local high school. You plan to obtain a simple random sample of 200 such residents by using the roster of the high school as the sampling frame.

  Regression equation to the sample points

Identify this F ratio. What does the F ratio tell you about the fit of the regression equation to the sample points? What does it suggest?

  Detailed explanation to regression equation

A professor obtains SAT scores and freshman grade point averages (GPAs) for a group of n=15 college students. The SAT scores have a mean of M=580 with SS=22,400, and the GPAs have a mean of 3.10 with SS=1.26, and SP=84.

  Sample size to estimate the population mean

What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?

  Chi-square test for goodness of fit

Chi-square test for goodness of fit -  difference in the use of the four entrances?

  Determining level of measurement

Ski Resorts of Vermont, Inc. is considering a merger with Gulf Shores, Inc. of Alabama. The board of directors surveyed 50 stockholders concerning their position on the merger.

  Correlation coefficient random sample

Describe how you would develop a random sample from among students.

  Estimation of correlation coefficient

(A) What sums are needed to calculate a correlation coefficient? (B) What are the two ways of testing a correlation coefficient for significance?

  Value of the results of the game

Would you play this game if you wanted to make money? What do we expert the value of the results of the game to be?

  Computing minimum sample size

Find the minimum sample size needed using a prior study that found that 36% of the respondents said they support abolishing the penny.

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