Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Statistics and Probability Expert

Question: An economist wishes to estimate the average family income in a certain population. The population standard deviation is known to be $4,500, and the economist uses a random sample of size n = 225. What is the probability that the sample mean will fall within $800 of the population mean?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M92501412
  • Price:- $15

Priced at Now at $15, Verified Solution

Have any Question?


Related Questions in Statistics and Probability

Te height of woman ages 20-29 is normally distributed

The height of woman ages 20-29 is normally distributed , with a mean of 64.3 inches. assuming the standard diviation = 2.4 inches. are you more likely to randomly select 1 woman with a height less than 66.2 inches or are ...

Suppose that the weight of all navel oranges is normally

Suppose that the weight of all navel oranges is normally distributed with mean of 8 ounces, if we know that the percentage of oranges that weigh less than 8.7 ounces is 68% find the standard deviation?

If net income in 2012 956 and if the following changes

If net income in 2012 = $956, and if the following changes occur between 2011 and 2012, compute Net Cash Flow from Operating Activities for 2012: Accounts receivable change from $157 to $237 Gross fixed assets change fro ...

Among 140 subjects with positive test results there are 25

Among 140 subjects with positive test? results, there are 25 false positive? results; among 152 negative? results, there are 22 false negative results. If one of the test subjects is randomly? selected, find the probabil ...

The probability that someone made a purchase at a store is

The probability that someone made a purchase at a store is 0.36. You randomly select 15 people who went to the store. The random variable x represents the number of people who made a purchase. a. Find the probability tha ...

Question 1let x represent the height of first graders in a

Question 1 Let x represent the height of first graders in a class. This would be considered what type of variable: A)Continuous B)Discrete C)Nonsensical D)Lagging Question 2 Let x represent the height of corn in Oklahoma ...

How do you calculate true population proportion if your

How Do you calculate true population proportion if your defective sample is too small? For example, if you have 50 and defect is 4. Please look below for more details.

The service manager for anbspcar dealership reviewed sales

The service manager for a car dealership reviewed sales records of the past 25 sales of new cars to determine the number of warranty repairs he will be called on to perform in the next 90 days. Corporate reports indicate ...

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 ...

The acme insurance company has two types of customers

The ACME Insurance Company has two types of customers, careful and reckless. A careful customer has an accident during the year with probability 0.01. A reckless customer has an accident during the year with probability ...

  • 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

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As