What is the combined median for exam

Assignment Help Basic Statistics
Reference no: EM131200793

A professor took a sample of 194 students from her morning class and 131 in the evening class. On the 1st exam, all those sampled from the morning class got 64 while those sampled from the evening averaged to 71 with a variance of 179. If the two samples were combined

1. What is the combined exam 1 average ? (66.8215?)

2. What is the combined median for exam 1?

3. what is the shape of the combined exam 1 grade distribution?

4. What is the combined exam 1 Standard deviation?

Reference no: EM131200793

Questions Cloud

What is the cost of an apple and an orange : James bought 5 apples and 10 oranges for $4. Donald bought 3 apples and 9 oranges for $3. The shop keeper strictly told that there will not be any discounts. What is the cost of an apple and an orange?
How much money do you have to save in that fund : How much money do you have to save in that fund every month in order to make your retirement dream come true?
How many alcohol-related accidents were expected : The price of a certain commodity in dollars per unit at time t (measured in weeks) is given by p = 8 + 7e^(-2t) + te^(-2t). What is the average price of the commodity over the 4-week period from t = 0 to t = 4?
Analyze the facets of organizational culture : Analyze the facets of organizational culture, including influences and functions, challenges related to changing the culture, and the impact of culture on organizational performance.
What is the combined median for exam : A professor took a sample of 194 students from her morning class and 131 in the evening class. On the 1st exam, all those sampled from the morning class got 64 while those sampled from the evening averaged to 71 with a variance of 179. If the two ..
Design two day training program for group of twenty employee : Design a two day training program for a group of twenty employees. Identify two to three training needs though a Training Needs Analysis (TNA) and justify an approach for this training.
Do you think new dialysis center will attract more patients : Do you think the new Dialysis Center will be able to attract more patients? - What impact would additional volume have on the facilities allocation decision?
Represents the event of selecting a response : If b represents the event of selecting a response from a boy, find P(?).Find the probability that the selected answer was made by a girl or was answered no.If g represents the event of selecting a response from a girl, find P (?).Find the probabil..
Find an equation of the line con­ taining the points : Draw a scatter diagram of the data treating weight as the independent variable.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Find the confidence interval for the proportion

A recent study of 75 workers found that 53 people rode the bus to work each day.  Find the 95 percent confidence interval of the proportion of all workers who rode the bus to work.

  The international tennis federation itf establishes the

the international tennis federation itf establishes the specifications for tennis balls. the diameter of a tennis ball

  Their total cholesterol levels before also after the diet

Utilizing the 5% level of significance as there was a significant change in cholesterol level. Their total cholesterol levels before also after the diet.

  Why it is not generally informative to judge unusualness

The residuals for Alaska in the original regression is above 50. Explain why it is not generally informative to judge the unusualness of an observation purely by the magnitude of its residual?

  Frequency of committing error with different alpha level

In 1,000 samples, assuming that  H 0 is true, how many times would you expect to commit Type I error if:

  Test for single meanaccording to one investigators model

test for single mean.according to one investigators model the data are like 400 draws made at random from a large box.

  Creation of a design and implementation team by roles

Write a proposal paper (1,250-1,500 words) for a major change project that you would like to lead.Identify a health care issue that interests you and explain why. Develop a rationale using evidence-based research, including:

  Refusing to enact a slave code

Lincoln Democrats refused to accept Stephen Douglas as their presidential nominee in 1860 because he had insisted in his ______ that settlers in a territory could help keep slavery out by refusing to enact a slave code

  Question regarding the feelings of alienation

As part of a new prevention program, a clinical psychologist wants to see whether feelings of alienation differ as a function of immigration status in a local high school.

  Probability-fatal accident

Suppose that the probability is 1 in 3,900,000 that a single auto trip in the U.S. would result in the death of the driver. Over a lifetime, an average U.S. driver takes 50,000 trips.

  Cockpit noise level independent of flight phase

High levels of cockpit noise in an aircraft can damage the hearing of pilots who are exposed to this hazard for many hours. A Boeing 727 co-pilot collected 61 noise observations using a handheld sound meter.

  A researcher wishes to try three different techniques to low

A researcher wishes to try three different techniques to lower the blood pressure of individuals with high blood pressure. The subjects are randomly selected and assigned to three groups

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