I'm not sure whether to solve with a T test or a Z test because n < 30 (T test), but the standard deviation is known (Z test). How can I figure out which test statistic to use when both test statistics have a condition (ie n < 30 and std dev is known) that is true? Thank you. 18. Which way of dispensing champagne, the traditionalvertical method or a tilted beer-like pour, preserves moreof the tiny gas bubbles that improve flavor and aroma?The following data was reported in the article "On theLosses of Dissolved CO, during Champagne Serving"(J. Agr. Food Chem., 2010: 8768 8775).Temp ("C)Type of PourMean (g/L)SD18Traditional44.018Slanted43.712Traditional4.3.312Slanted42.0.3Assume that the sampled distributions are normal.1. Carry out a test at significance level .01 to decidewhether true average CO, loss at 18 °C for the tradi-tional pour differs from that for the slanted pour.b. Repeat the test of hypotheses suggested in (a) for the12° temperature. Is the conclusion different from thatfor the 18° temperature? Note: The 12° result wasreported in the popular media.wiwwin

Test Statistic: A test statistic is a random variable computed from the dataset and applied in a…

I'm not sure whether to solve with a T test or a Z test because n < 30 (T test), but the standard deviation is known (Z test). How can I figure out which test statistic to use when both test statistics have a condition (ie n < 30 and std dev is known) that is true? Thank you.

I'm not sure whether to solve with a T test or a Z test because n < 30 (T test), but the standard deviation is known (Z test). How can I figure out which test statistic to use when both test statistics have a condition (ie n < 30 and std dev is known) that is true? Thank you.

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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Question

18. Which way of dispensing champagne, the traditional
vertical method or a tilted beer-like pour, preserves more
of the tiny gas bubbles that improve flavor and aroma?
The following data was reported in the article "On the
Losses of Dissolved CO, during Champagne Serving"
(J. Agr. Food Chem., 2010: 8768 8775).
Temp ("C)
Type of Pour
Mean (g/L)
SD
18
Traditional
4
4.0
18
Slanted
4
3.7
12
Traditional
4.
3.3
12
Slanted
4
2.0
.3
Assume that the sampled distributions are normal.
1. Carry out a test at significance level .01 to decide
whether true average CO, loss at 18 °C for the tradi-
tional pour differs from that for the slanted pour.
b. Repeat the test of hypotheses suggested in (a) for the
12° temperature. Is the conclusion different from that
for the 18° temperature? Note: The 12° result was
reported in the popular media.
wiwwin

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