Answered: 800 700 600 500 400 300 200 100 A B D…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Topic Video

Question

Activating baking yeast To shorten the time it takes him

to make his favorite pizza, a student designed an experi-
ment to test the effect of sugar and milk on the activation

times for baking yeast. Specifically, he tested four differ-
ent recipes and measured how many seconds it took for

the same amount of dough to rise to the top of a bowl. He
randomized the order of the recipes and replicated each
treatment 4 times.Here are the boxplots of activation times from the four
recipes:

The ANOVA table follows:

Source DF
Sum of
Squares

Mean

Square F-Ratio P-Value
Recipe 3 638967.69 212989 44.7392 60.0001
Error 12 57128.25 4761
Total 15 696095.94

a) State the hypotheses about the recipes (both numeri-
cally and in words).

b) Assuming that the assumptions for inference are satis-
fied, perform the hypothesis test and state your conclu-
sion. Be sure to state it in terms of activation times and

recipes.
c) Would it be appropriate to follow up this study with
multiple comparisons to see which recipes differ in
their mean activation times? Explain.

800
700
600
500
400
300
200
100
A
B
D
Recipe
Activation Times (sec)

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 + ...

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 3 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Means$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions