+1-415-315-9853

info@mywordsolution.com

## Statistics

describe probability using Z - score

1) Times spent studying by students in the week prior to final exams follow a normal distribution with standard deviation eight hours.  A random sample of four students was taken in order to estimate the callous study time for the population of all students.

1) describe the probability that the sample mean is more than 3 hours below the population mean?

2) describe the probability that the sample mean differs from the population mean by less than 2 hours?

1) It is desired to estimate the average total compensation of CEOs in the Service industry. Data were arbitrarily collected from 18 CEOs and the 97% confidence interval was intended to be (\$2,181,260, \$5,836,180). describe which of the following interpretations is correct?

1) 97% of the sampled total compensation values fell between \$2,181,260 and \$5,836,180.

2) We are 97% confident that the mean of the sampled CEOs falls in the interval \$2,181,260 to \$5,836,180.

3) In the population of Service industry CEOs 97% of them will have total compensations that fall in the interval \$2,181,260 to \$5,836,180.

4) We are 97% confident that the average total compensation of all CEOs in the Service industry falls in the interval \$2,181,260 to \$5,836,180

Statistics and Probability, Statistics

• Category:- Statistics and Probability
• Reference No.:- M920316

Have any Question?

## Related Questions in Statistics and Probability

### Assume the random variable x is normally distributed with

Assume the random variable x is normally distributed with mean mu = 85 and standard deviation sigma =4. Find the indicated probability. P(x

### Listed below is a list of how long it takes for bands on

Listed below is a list of how long it takes for bands on stage to complete their first song (in seconds). 538 312 327 309 344 313 318 315 325 331 312 314 What is the mean time it takes for bands on stage to complete thei ...

### 1 what can researchers do to minimize error variance2

1. What can researchers do to minimize error variance? 2. Discuss the trade-off between internal and external validity. Which is more important? Explain.

### Question 1interpret the following output examining group

Question 1 Interpret the following output examining group differences for purchase intentions. The three groups refer to consumers from the states of Illinois, Louisiana and Texas Dependent variable int 2 Source Type III ...

### When conducting a hypothesis test if z calculated is less

When conducting a hypothesis test, if z calculated is less than z critical, you should accept the null hypothesis?

### 44nbspof a certain countrys voters think that it is too

44% of a certain country's voters think that it is too easy to vote in their country. You randomly select 12 likely voters. Find the probability that the number of likely voters who think that it is too easy to vote is ( ...

### In this exercise we prove a generalization of brouwers

In this exercise, we prove a generalization of Brouwer's Fixed Point Theorem to compact sets that are not necessarily convex, but are homeomorphic to a convex set. Two compact sets X and Y in R n  are called homeomorphic ...

### Microsoft word - stat Microsoft Word - STAT Assignment 1.

Microsoft Word - STAT Assignment 1. Anationalrepresentativesurveyofstudentsingrades7-12askedaboutthe experience of these students with respect to sexual harassment. The students were asked whether or not they were harass ...

### A repeated-measures experiment comparing only two

A repeated-measures experiment comparing only two treatments can be evaluated with either a t statistic or an ANOVA. As we found with the independent-measures design, the t test and the ANOVA produce equivalent conclusio ...

### A statisticsnbspinstructor at a large western university

A statistics instructor at a large western university would like to examine the relationship (if any) between the number of optional homework problems students do during the semester and their final course grade. She ran ...

• 13,132 Experts

## 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.

### 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