+1-415-315-9853

info@mywordsolution.com

## Statistics

1) Companies which design furniture for elementary school classrooms create a variety of sizes for kids of various ages.  Assume the heights of kindergarten children can be describeed by a Normal distribution with a mean of 37.2 inches and standard deviation of 2.1 inches.

a) What fraction of kids must the company expect to be less than 35 inches tall?

b) In what height interval must the company expect to determine the middle 70% of kindergarteners?

c) At least how tall are the biggest 15% of students?

2) Bank Accounts: You work for business analytics department of a large commercial bank, and you learn that balances of small-business accounts are distributed on log-scale according to a normal distribution.  You also learn that the lower and upper quartiles of the balances are \$500 and \$50,000, respectively.  In the sub-problems given below you will end up inferring in small steps what a 95% range of the bank balances is.

a) Determine the lower and upper quartiles of the log10-balances?

b) Determine the mean and standard deviation of log10-balances?

c) Determine a 95% range of the log10-balances?

d) Determine a 95% range of the balances in \$s?  Express in English what the two boundaries mean.

Statistics and Probability, Statistics

• Category:- Statistics and Probability
• Reference No.:- M910350

Have any Question?

## Related Questions in Statistics and Probability

### In the unit 4 discussion you were asked to create a

In the Unit 4 Discussion you were asked to create a research question and then convert that question into a null hypothesis and alternative hypothesis. You also determined if your alternative is one-tailed or two-tailed. ...

### The two-person game shown in table 1 has a unique nash

The two-person game shown in Table 1 has a unique Nash equilibrium (see Moulin and Vial, 1978) in which each player's expected payoff is 3.

### A special industrial battery must have a life of at least

A special industrial battery must have a life of at least 500 hours. A hypothesis test is to be conducted with a 0.04 level of significance. If the batteries from a particular production run have an actual mean use life ...

### In a recent funding drive in support of classical radio it

In a recent funding drive in support of classical radio, it was announced that 11.35% of the listeners actually donated to the radio station. A survey of 225 listeners found that 10.75% of the listeners had actually dona ...

### While this campaign ended with a massive us military

While this campaign ended with a massive US military victory in which the Viet Cong were utterly destroyed as a fighting force, it is widely considered a major political defeat for the US because it initiated a major gro ...

### The manager of the cheesecake factory in boston reports

The manager of The Cheesecake Factory in Boston reports that on six randomly selected weekdays, the number of customers served was 120, 130, 100, 205, 185, and 220. She believes that the number of customers served on wee ...

### Discuss the beginnings of the cold war from the position

Discuss the beginnings of the Cold War. From the position of a Soviet ruler, how might you have viewed the situation following WWII? How did the Truman administration attempt to handle it? (Include as many of the followi ...

In your words, demonstrate your understanding on the following concepts: a) Survival analysis b) Life table c) Kaplan-Meier curve d) Logrank test e) Negative exponential survival distribution f) Cox proportional hazards ...

### 1 can single-case experimental designs be used to test the

1. Can single-case experimental designs be used to test the effects of various levels of an independent variable (as in a one-way group design)? Explain. 2. How many levels of the independent variable are there in an ABA ...

### Carter motor company claims that its new sedan the libra

Carter Motor Company claims that its new sedan, the Libra, will average better than 24 miles per gallon in the city. Use μ, the true average mileage of the Libra. Express the null hypothesis and the alternative hypothesi ...

• 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