19. what is the sample mean (use X to denote sample mean and 2 decimal places)20. what is the sample standard deviation (use s to denote sample SD and 4 decimal places) 2. The recommended price for 1 kilo of pork isPhp 225 pesos. A researcher wants to know if acertain market is following the recommendedprice. He went to 14 different stalls and asked theprice of 1 kilo of pork. The table below shows thecollected prices. At a=0.01, is there enoughevidence for the researcher's claim that a certainmarket is not following the recommended pricefor 1 kilo of pork?210 270 240 235 225 200 210250240 240 255 230 235 19012S1: What is the null hypothesis? (Towrite u, just type the letter "u" on yourkeyboard) *

Calculate the Sample Mean and Sample Standard deviation Using the Excel

Answered: 19. what is the sample mean (use X to…

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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19. what is the sample mean (use X to denote sample mean and 2 decimal places)

20. what is the sample standard deviation (use s to denote sample SD and 4 decimal places)

2. The recommended price for 1 kilo of pork is
Php 225 pesos. A researcher wants to know if a
certain market is following the recommended
price. He went to 14 different stalls and asked the
price of 1 kilo of pork. The table below shows the
collected prices. At a=0.01, is there enough
evidence for the researcher's claim that a certain
market is not following the recommended price
for 1 kilo of pork?
210 270 240 235 225 200 210
250
240 240 255 230 235 190
12
S1: What is the null hypothesis? (To
write u, just type the letter "u" on your
keyboard) *

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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