Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Probability based on normal distribution.

1. A z-score of z = +1. A z-score of z = +2.00 indicates a position located exactly two standard deviations above the mean.

True

False

2. for a population with? = 100 and s = 20, the X value corresponding to z = 1.50 is X = 130.

True

False

3. A population with? = 100 and s = 20 is transformed into z-scores. The resulting distribution of z-scores will have a mean of zero.

True

False

4. One advantage of transforming X values into z-scores is that the transformation always creates a normal distribution.

True

False

5. for a population with? = 100 and s = 10, the score corresponding to z = 1.50 is X = ________.

a. X = 101.5

b. X = 105

c. X = 110.5

d. X = 115

6. Random sampling requires that each individual in the population has an equal chance of being selected.

True

False

7. A container has 4 red marbles and 5 blue marbles. If one marble is selected randomly, after that the probability of obtaining a red marble is 4/5 or 0.80.

True

False

8. For a normal distribution, the proportion in the tail beyond z = +1.00 is p = .1587, and the proportion in the tail beyond z = -1.00 is p = -.1587. (Points: 1)

True

False

9. If a vertical line is drawn throughout a normal distribution at z = 1.00, the proportion to the left of the line will be equal to 0.8413.

True

False

10. For a normal distribution, the possibility of randomly selecting a z-score greater than z = -2.00 is p = .0228.

True

False

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920946

Have any Question? 


Related Questions in Statistics and Probability

Relate the content of this video to the industry segment of

Relate the content of this video to the Industry segment of the external environment by describing which of Porter's Five Competitive Forces is the focus of Outsell Consulting's value proposition? What is the nature of t ...

Mimi joined umuc basketball team since summer 2016 on

Mimi joined UMUC basketball team since summer 2016. On average, she is able to score 30% of the field goals. Assume she tries 15 field goals in a game. (a) Let X be the number of field goals that Mimi scores in the game. ...

Describe the collapse of the soviet union begin with the

Describe the collapse of the Soviet Union. Begin with the events during the 1980s including the entire Gorbachev era. Should include at least the following topics: 1. Poland's democratic revolution of the 1980s 2. Gorbac ...

Question i am sending this question second time because i

Question: I am sending this question second time because I have suspicion about the solution. I am solving it by converting the given percentages into probabilities, and then calculating Expected Freq.=np. Please follow ...

1 do outliers increase or decrease the magnitude of

1. Do outliers increase or decrease the magnitude of correlation coefficients? 2. What impact does reliability have on correlation? 3. Why can't we infer causality from correlation?

Part -11 the final project is like a very abbreviated mini

Part -1: 1) The final project is like a VERY abbreviated mini research report, where you will be running a combination of descriptive statistics and inferential statistics on a dependent variable and an independent varia ...

1 what is an interaction2 how many interactions can be

1. What is an interaction? 2. How many interactions can be tested in a 2 x 2 design? In a 3 x 3 design? In a 2 x 2 x 3 design? 3. Why do researchers use expericorr designs?

Given a stable matching of n men and n womena is it

Given a stable matching of n men and n women, (a) Is it possible to find three pairs such that if the matching among them is changed, each man will be matched to a woman whom he prefers, and each woman will be matched to ...

The borda and condorcet methods- the following example was

The Borda and Condorcet Methods :- The following example was presented by Condorcet, in a critique of the Borda Method. A committee composed of 81 members is to choose a winner from among three candidates, A, B, and C. T ...

Develop a research question that addresses one of the

Develop a research question that addresses one of the unknowns in the question: Positive interactions between the CEO and board members lead to enhanced and better performance of the Corporation . Address the following 1 ...

  • 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