Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Probability based on Normal Distribution

The mean amount purchased by a typical customer at Churchill's Grocery Store is $23.50 with a standard deviation of $5.00. Suppose the distribution of amounts purchased follows the normal distribution. For a sample of 50 customers, answer the following problems.

1. a. What is the probability the sample mean is at least $25.00?

2. b. What is the probability the sample mean is greater than $22.50 but less than $25.00?

3. c. Within what limits will 90 percent of the sample means occur?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M918104

Have any Question? 


Related Questions in Statistics and Probability

Lucerne earns a gross income of 5500 per month and applies

Lucerne earns a gross income of $5,500 per month and applies for a mortgage with a monthly PITI of $1,244. Lucerne has other financial obligations totaling $829 per month. (Use the ratio guidelines from your text) What t ...

If x and y are statistically independent random variables

If X and Y are statistically independent random variables both with probability density function f(t)=e^(-t) I[0, +infinity](t) , where I is the indicator function of t. Find the probability density of the variable Z=Squ ...

Designing and writing a report on a statistical study of

Designing and Writing a Report on a Statistical Study of Your Own Select a question of your own to investigate using one of the hypothesis tests studied in this class.  Explain why you chose the particular question to in ...

Suppose a new student honors societynbspalpha alpha

Suppose a new student honors society, Alpha Alpha Alpha, is going to start at Harvard. Alpha Alpha Alpha aims to be exclusive and only wants the best students.Currently, there are about 10,000 students enrolled at Harvar ...

Suppose that 3 of all adults suffer from diabetes and that

Suppose that 3% of all adults suffer from diabetes and that 28% of all adults are obese. Suppose also that 2% of all adults both are obese and suffer from diabetes. (a) Find the probability that a randomly chosen adult i ...

You are an economic consultant whose task is to investigate

You are an economic consultant whose task is to investigate whether there is gender discrimination with respect to earnings in the government of Little Rock. You take a random sample of 22 people of which 10 are women an ...

Question discuss the specific innovations of jackson

Question: Discuss the specific innovations of Jackson Pollock, as well as his cultural influences and artists he influenced. Use at least two examples of specific artworks. This question relates to Chapter 28 and 29 in A ...

Suppose we randomly sample 400 nucleotides from the human

Suppose we randomly sample 400 nucleotides from the human genome. (Consider only a single strand.) Does the occurrence of adenine, thiamine, cytosine and guanine (A, C, T and G) in this sample suggest that nucleotides in ...

Nicollette joined towson university basketball team since

Nicollette joined Towson University basketball team since summer 2015. 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 ...

Considering the effect that colonialism has had on the

Considering the effect that colonialism has had on the world today, how has and/or does Colonialism continue to affect the world? Choose one country or area that we have studied and discuss the continuing effects of colo ...

  • 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