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Question: Researchers at a food company are interested in how a new spaghetti sauce made from green tomatoes (and green in color) will compare to their traditional red spaghetti sauce. They are worried that the green color will adversely affect the tastiness scores. They randomly assign subjects to either the green or red sauce condition. Participants indicate the tastiness of the sauce on a 10-point scale. Tastiness scores tend to be skewed. The scores follow.
Participant Red Sauce Green Sauce1 7 42 6 33 9 64 10 85 6 76 7 57 8 9
a. What statistical test should be used to analyze these data?
b. Identify H0 and Ha for this study.
c. Conduct the appropriate analysis.
d. Should H0 be rejected? What should the researcher conclude?
Below you are given a partial computer output based on a sample of 21 observations, relating an independent variable (x) and a dependent variable (y).
How should he go about taking samples to gather data for testing the hypotheses?
What is the probability that (a) the birthdays of twelve people will fall in twelve di?erent calendar months (assume equal probabilities for the twelve months).
Machine X test unit cost $3000 with beta=3 and theta=500, Machine Y test unit cost $2000 with beta=3 and theta=400. If the machines oil fixtures has life of 20 hrs, which machine goes to market first?
A test consists of multiple-choice questions, each having four possible answers (a,b,c,d) one of which is correct. Assuming that you guess the answers to six such questions.
When combining probabilities, to find the probability of one event AND another event, the separate probabilities should be
Given the following hypotheses: the true mean equals 100 (the null) and the true mean does not equal 100 (the alternate), a random sample of six resulted in the following values:
Write 1-2 paragraphs for each component of the model (days-to-repair; interval between breakdowns; lost revenue; putting it together).
clarkson university surveyed alumni to learn more about what they think of clarkson. one part of the survey asked
The population mean is greater than 200 and the sample mean is 215, we can say that the claim is true even without a formal test. I this true or false and why?
The process is monitored using a sample size of 20. Calculate the upper and lower control limits. Give your answers to 2 decimal places.
A basketball player has a history of making 75% of the foul shots taken during games. The player gets two shots at the foul line.
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