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1. Suppose a food scientist wanted to compare the "tastiness" of different variations of a cookie recipe.
(a) Suggest several ways to quantify (measure) "tastiness", and discuss the advantages and disadvantages of each.
(b) Discuss the sources of variability (e.g., measurement error) in the con text of this problem, and suggest ways to minimize the effects of vari ability on the results of the study.
2. R&D chemists conducted an extensive study of a new paint formulation. Four batches of the paint were made and ten test panels from each batch were sprayed for testing. One characteristic of interest was the gloss of the paint (an appearance measure). Discuss repeated measures versus replication in the context of this study.
suppose that y is a discrete random variable with mean u and variance o2 and let xy1a. do you expect the mean of x to
A U.S. Department of Justice report included the claim that "in spouse murder cases, wife defendants were less likely to be convicted than husband defendants
Create a frequency table and histogram for each of the numerical variables in this data set. Indicate whether each of these distributions is approximately symmetric or skewed. Which, if any, of these distributions are skewed to the right? Which, i..
the probability is 33 that a message sent over a communication channel is garbled. if the message is sent repeatedly
the mean and standard deviation on a calculus mid term are 61 and 13 points while they are 65 and 19 on the final. if a
describe and explain two alternatives to nhst. what do their proponents consider to be their
The average monthly electric bill of a random sample of 256 residents of a city is $90 with a standard deviation of $24.
question a political party suspects there are differences in presidential candidate preferences based on age. a
A travel agent suggests that since the law of averages makes it highly unlikely to have two plane crashes within a few weeks of each other, flying soon after a crash is the safest time. What do you think?
In our discussions of basic probability theory the concepts of mutually exclusive events and independent events share prominent roles.
a what is the interpretation of the intercept in regressions 1 and 2? is the intercept meaningful?b please
What symbol is used to represent the mean of the sampling distribution of y-(ybar)? Explain and what symbol is used to represent one value from the sampling distribution of y-(ybar)? Explain
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