Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

1) Random sample is attained from the normal population with the mean of µ = 80 and a standard deviation of σ = 8. Which of the following outcomes is more probable Describe your answer?

A. A sample mean greater than 86 for a sample of n = 4 scores.

B. A sample mean greater than 84 for a sample of n = 16 scores.

2) Population has the mean of µ = 45 and a standard deviation of σ = 20. Determine the z-score corresponding to each of the following sample means attained from this population (hint: use the standard error).

A. mean = 47 for a sample of n = 4 scores

B. mean = 47 for a sample of n = 100 scores

C. mean = 40 for a sample of n = 16 scores

3) Distribution of scores on the SAT is approximately normal with the mean of 500 and a standard deviation of σ = 100. For the population of students who have taken the SAT.

A. Determine the percentage which has SAT scores greater than 550?

B. What is the minimum SAT score required to be in the highest 10% of the population?

C. If a state college only accepts students from top 60% of the SAT distribution, determine the minimum SAT score required to be accepted?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M910327

Have any Question? 


Related Questions in Statistics and Probability

Professor professorson a researcher at greendale community

Professor Professorson, a researcher at Greendale Community College, is interested in the effect of caffeine on the typing speed of students. Professorson obtains a random sample of 8 students who are given 400 mg of caf ...

1 what are the advantages and disadvantages of using

1. What are the advantages and disadvantages of using narrative records in observational research? 2. Distinguish between a structured and unstructured observation method. 3. Distinguish between checklists and observatio ...

Please explain every step to make the sum understandableit

Please explain every step to make the sum understandable. It has been hypothesized that the distribution of seasonal colds in Canada is as follows: Season          Percentage Fall                    35% Winter            ...

Using the confidence interval when conducting a two-tailed

Using the confidence interval when conducting a two-tailed test for the population proportion p, we reject the null hypothesis if the hypothesized value for p falls inside the confidence interval.

Thirty percent of the time a sale at food shoppe is paid

Thirty percent of the time, a sale at Food Shoppe is paid using a store-issued credit card. A sample of 18 Food Shoppe sales is obtained. Let X represent the number of sales paid for using the store-issued credit card. W ...

Problem 1 three times each day a quality engineer samples a

Problem 1: Three times each day, a quality engineer samples a component from a recently manufactured batch and tests it. Each part is classified as conforming (suitable for its intended use), downgraded (unsuitable for t ...

For each of the following three cases explain i the

For each of the following three cases, explain (i) the hypotheses with a plausible definition of p1 and p2, (ii) whether or not the data indicate practical significance (use common sense and/or general knowledge), and (i ...

Topicnbspstate party structurethreadnbspfirst review the

Topic:  State Party Structure Thread:  First, review the Reading & Study presentation "Political Structure at the State Level" as an example about the structure of the Republican Party in Virginia Select 1 of the major p ...

In this exercise we present a family of algorithms each of

In this exercise, we present a family of algorithms, each of which produces the men's courtship matching, and contains the Gale-Shapley algorithm. Consider the following algorithm for matching men and women. At the start ...

This exercise is similar to given exercise but instead of

This exercise is similar to given Exercise, but instead of announcing the probability of a particular event given their private information, the players announce whether or not the expectation of a particular random vari ...

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

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