Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

Comparison of exam scores based on their Z scores.

1. For a sample with the standard deviation of 10, a score of X = 44 corresponds to a z-score of 0.50. Based on this info, what is the sample mean?

2. Which of the following exam scores must lead to the better grade? Describe the answer.

A. A score of X = 55 on an exam that has a mean of 60 and a standard deviation of 5.

B. A score of X = 40 on an exam that has a mean of 50 and a standard deviation of 20.

Physics, Academics

  • Category:- Physics
  • Reference No.:- M918047

Have any Question? 


Related Questions in Physics

Find an equation for dpdt equivalent to the

Find an equation for d[P]/dt equivalent to the Michaelis-Menten equation when the third step of the reaction (Reaction R14.7) is not required to be fast compared to the second step, and when k-2 is significant. Assume on ...

A pomegranate is thrown from ground level straight up into

A pomegranate is thrown from ground level straight up into the air at time t = 0 with velocity 64 feet per second. Its height at time t seconds is f(t) = -16t 2 + 64t. Find the time it hits the ground and the time it rea ...

Markov chain monte carlo methods do not compute partition

Markov chain Monte Carlo methods do not compute partition functions Z, yet they allow ratios of quantities like Z to be estimated. For example, consider a random-walk Metropolis algorithm in a state space where the energ ...

The graph of fahrenheit temperature degf as a function of

The graph of Fahrenheit temperature, °F, as a function of Celsius temperature, °C, is a line. You know that 212°F and 100°C both represent the temperature at which water boils. Similarly, 32°F and 0°C both represent wate ...

A 60 kg student consumes 2500 cal each day and stays the

A 60 kg student consumes 2500 Cal each day and stays the same weight. One day, he eats 3500 Caland, wanting to keep from gaining weight, decides to "work off" the excess by jumping up and down. With each jump, he acceler ...

A flat steel plate is 20 m length and 20 m width initially

A flat steel plate is 2.0 m length and 2.0 m width initially contains a very thin coating of lubricating oil used in a manufacturing process. An engineer is considering the feasibility of using hot forced air convection ...

Sketch the potential energy or ecnbspand evnbspas a

Sketch the potential energy or E C  and E V  as a function of position in a semiconductor crystal which contains (a) a complete random distribution of a small fraction of the host atoms from their lattice sites, (b) non- ...

A mass on a spring vibrates in simple harmonic motion at a

A mass on a spring vibrates in simple harmonic motion at a frequency of 4.0 Hz and an amplitude of 4.0 cm. If a timer is started when its displacement is a maximum (hence x =4cm when t=0), what is the acceleration magnit ...

In 2009 the population of hungary11 was approximated

In 2009, the population of Hungary 11 was approximated by where P is in millions and t is in years since 2009. Assume the trend continues. (a) What does this model predict for the population of Hungary in the year 2020? ...

The bubble less shell-and-tube membrane aeration system

The ''bubble less'' shell-and-tube membrane aeration system shown below is used to transfer oxygen gas to liquid water. Water completely free of dissolved oxygen is added to the tube side at the entrance. Pure oxygen gas ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen