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A datset is provided on a 3 factor factorial on the amount of rot on a potatoe crop. The variables are:
Type of BacteriaTemperature levelOxygen level
Create interaction plots (there a 3 seperate plots, Bacteria and Temp, Bacteria and Oxygen, Temp and Oxygen).
Perform F-tests and make conmclusions on what type of model you have.
Create and test/CI a main effect contrast on Bateria (1 and 2) vs. 3.
A technical training school, located in 3 cities: Atlanta, Chicago and San Fransisco, wanted to determine if there differences in student scores for the 3 locations. Two instructors were chosen from each location, and then two students chosen from each instructor. The data are located hereWhat design is this?Which factors are fixed and whic random?Obtain the ANOVA table.Answer the research question as thorougly as possible.
What is Bayesian sample size determination for ANOVA and regression with formula?
Which of the following errors will be associated with the sample? Errors due to interviewer bias and selection bias.
What is the probability of randomly selecting a sample of 30 scores which has a mean attention span equal to or greater than 17 minutes.
Ninety of these flashlights are selected at random from the production line to be tested, and 15 are found to be defective. The population is?
the flavor of gum that is purchased. Determine the test value for the data given type number sold spearmint 25 wintergreen 32 cherry 18 cinnamon 43.
Proportion of out-of-tolerance items is greater than 0.02, the robot will be overhauled. Otherwise it will be allowed to continue operating. What is the probability that a satisfactory robot will be overhauled unnecessarily?
The margin of error for polling results is typically determined as the half-width of a 95% confidence interval. With respect to a particular ballot proposition
How large should n be so that a 90% confidence interval for µ has a margin of error and What is the P-value for a test of the hypotheses
You manufacture and sell an iron rod whose electrical conductivity is supposed to be 10.1. You plan to make 6 measurements of the conductivity of a rod you plan to sell.
Call this the customer's age. Next, for each of 100 customers, draw from the N(10; 2) distribution and call this the customer's length of membership.
If 36 sand dollars are selected at random for collection, determine the probability that average diameter of those sand dollars is more than 3.80 centimeters. Suppose that variable is normally distributed.
What sampling method is best suited for such a survey? Why? Draw the sample using the random number table and bring out the rationale of the procedure. Limit your sample to 25 persons.
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