I don't know what I'm doing wrong I used the formula for the population mean and I keep getting the wrong answer. Please help.. Homework Assignment iSavedHelpSave & ExitSubmitCheck my workYou want to estimate the mean family income in a rural area of central Indiana. The question is, how many families should besampled? In a pilot sample of 10 families, the standard deviation of family income was $500.How many families should be interviewed to estimate the population mean income with 95% confidence and a margin of error of$100? (Use tDistribution Table & z Distribution Table.) (Round your answer to the next whole number.)Number of families< Prev6 of 10Next >31primevideoNDinyHIGH Cacer

We have given thatStandard deviation(σ) = 500Margin of error (E) = 100Significance level (α) = 1 -…

Answered: Check my work You want to estimate the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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I don't know what I'm doing wrong I used the formula for the population mean and I keep getting the wrong answer. Please help..

Homework Assignment i
Saved
Help
Save & Exit
Submit
Check my work
You want to estimate the mean family income in a rural area of central Indiana. The question is, how many families should be
sampled? In a pilot sample of 10 families, the standard deviation of family income was $500.
How many families should be interviewed to estimate the population mean income with 95% confidence and a margin of error of
$100? (Use tDistribution Table & z Distribution Table.) (Round your answer to the next whole number.)
Number of families
< Prev
6 of 10
Next >
31
prime
video
N
Diny
HIGH C
acer

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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