(Answered) To study water usage in a town a manager selected a random

Statistics

To study water usage in a town, a Manager selected a random sample of 22 households and found a sample mean usage of 346.2 gallons of water per day with a sample standard deviation of 50.5 gallons per day. Compute and explain a 95% confidence interval estimate of the population mean water usage per day.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92532451
Price:- $10

Verified Expert

Priced at $20 Now at $10, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

An urn contains 5 red and 10 blue balls balls are drawn

An urn contains 5 red and 10 blue balls. Balls are drawn sequentially from urn without replacement. Let X be the number of draws necessary in order to obtain exactly 4 red balls. Find probability mass function of X

European bonds pay coupons annually while us bonds pay

European bonds pay coupons annually, while U.S. bonds pay coupons semiannually. If the coupon rate on a European bond is 12% (annual coupons), what is the comparable coupon rate for a U.S. bond (semiannual coupons) assum ...

Discrete probability variablesthirtynbsppercent of

Discrete probability variables. Thirty percent of households say they would feel secure if they had? $50,000 in savings. You randomly select 8 households and ask them if they would feel secure if they had? $50,000 in sav ...

2 part questionpart 1 what do you think is the item that

2 part question: Part 1: What do you think is the item that accounts for the most cost in any hospital's budget? Can you outline ways to keep this cost under control? Part 2: Do think it is more difficult for a manager t ...

Suppose a retailer claims that the average wait time for a

Suppose a retailer claims that the average wait time for a customer on its support line is 179 seconds. A random sample of 57 customers had an average wait time of 169 seconds. Assume the population standard deviation fo ...

Last year a technology company bought one million in shares

Last year a technology company bought one million in shares of a GM stock at €40 per share and sold it one year later at €50. The spot exchange rate one year ago was $1.40 = €1 and the spot rate prevailing at the end of ...

1 for a normal distribution with mu 500 and sigma 100 a

1. For a normal distribution with μ = 500 and σ = 100, a. What is the percentile rank for X = 550? b. What is the percentile rank for X = 650? c. What is the percentile rank for X = 450? 2. For a normal distribution with ...

Suppose that 20 of men p20 and 15 of women p 15 are

Suppose that 20% of men (P=.20) and 15% of women (P= .15) are carriers of a particular genetic trait. That trait can only be inherited by a child if both parents are carriers. What is the probability that a child is born ...

In a sample of 28 cups of coffee at the local coffee shop

In a sample of 28 cups of coffee at the local coffee shop, the average temperature was 162.5 degrees with a standard deviation of 16.7 degrees. What would be the 95% confidence interval for the temperature of your cup of ...

You need to have accumulated savings of 2 million by the

You need to have accumulated savings of $2 million by the time that you retire in 20 years. You currently have savings of $200,000. How much do you need to save each year to meet your goal if your savings earn a return o ...

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

Recent Questions

Ask Statistics and Probability Expert