Mean and standard deviation of number of correct answers

Assignment Help Basic Statistics
Reference no: EM13149037

A test consist of 30 multiple choice questions, each with five possible answers, only one of which is correct. find the mean and standard deviation of the number of correct answers.

Reference no: EM13149037

Questions Cloud

Johnny bravo company began operations in 2012 : Johnny Bravo Company began operations in 2012 and has provided the following information.1. Pretax financial income for 2012 is $100,000. 2. The tax rate enacted for 2012 and future years is 40%.
Employee came into my office asking for a wage : Not long ago an employee came into my office asking for a wage increase. I responded by asking what increase in productivity the employee brought to the University in order to merit such an increase.
What are the genotypes of the parents and woman : A woman's parents both have A blood group and are homozygous. A woman is O group. She marries a man who is homozygous B type. Their children are both AB group.
What is the effect on east asia’s willingness to trade : a. What is the effect on East Asia’s willingness to trade? b. Assuming that each region is large enough to influence international prices, how do East Asia’s good-growing seasons in food affect the equilibrium international price ratio?
Mean and standard deviation of number of correct answers : A test consist of 30 multiple choice questions, each with five possible answers, only one of which is correct. find the mean and standard deviation of the number of correct answers.
Senior citizens and students have a relatively more elastic : Senior citizens and students have a relatively less elastic demand compared to other potential moviegoers. The government requires lower prices for senior citizens and students. Senior citizens and students have a relatively more elastic ..
Find the haplotype of a normal person : In malignant hyperthermia, a person develops a life threatening high fever after taking certain types of anesthetic drugs. DNA sequencing of individuals with the disorder showed that in position 33 A nucleotide is substituted by G, in 513 - C by T..
What amount of water could be heated : Assume that the kinetic energy of a 1500 kg car moving at 150 km/h could be converted entirely into heat. What amount of water could be heated from 22C to 48C by the car's energy?
Transactions associated to shareholders equity : Roberto Corporation was organized on January 1, 2011. The firm was authorized to issue 100,000 shares of $5 par common stock. During 2011, Roberto had the following transactions relating to shareholders' equity:

Reviews

Write a Review

Basic Statistics Questions & Answers

  Lowest number of statistically significant

Discuss how scale impacts the interpretation of a graph and name the lowest number of a statistically significant sample size and state the statistically appropriate percentage total of displays

  Exponentially distributed with distribution mean

Mr.Smith works on a temporary basis. The mean length of each job he gets is three months. If the amount of time he spends between jobs is exponentially distributed with distributed with mean 2, then at what rate does Mr. Smith get new job?

  Determine the point estimate for estimating proportion

A random sample of 4000 U.S. citizens yielded 2190 who are in favor of gun control legislation. Find the point estimate for estimating the proportion of all Americans who are in favor of gun control legislation.

  Determining hypothesis testing problem

Does the sample show sufficient reason to conclude that the population standard deviation is not equal to 8 at the 0.05 level of significance?

  Provide descriptive statistic to estimate number population

Provide a descriptive statistic (to 1 decimal) that could be used to estimate the number of women out of 1000 in this population who have tissue abnormalities.

  Does prototype meet these saftey guidelines

If the safety commission determines that an elevator design is safe if its operating load is exceeded less than 0.05% of the time, does this prototype meet these saftey guidelines?

  Uniform distribution of random numbers

Generate three random observations from the uniform distribution between -10 and 40 by using the following random numbers:

  Rectangular stage-side length

One side of a rectangular stage is 2 meters longer than the other. If the diagonal is 10 meters, than what are the lengths of the sides?

  Relationship between grades and sat scores

Is there meaningful relationship between grades and SAT scores? If student scores 450 on the SAT, what do youbelieve his or her GPA will be?

  How many treatments in method of administration

Additionally, method of delivery of drug (patch,pill, or nasal mist) was considered. In experiment, there were how many treatments?

  Intercepts and linear equations word problems

Find the slope and vertical axis intercept of the linear function

  Find percentage of boys in age range intake carbohydrate

Determine percentage of boys in this age range have carbohydrate intake above 140g/1000cal and carbohydrate intake below 90g/1000cal?

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