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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.
Determine a 95% confidence interval for the population mean.
Determine the maximum error of the estimate, E. Determine the confidence level used for the given confidence interval.
A particular factory can only inspect 46 mice per hour with a standard deviation of 10. At alpha=0.02 company have reason to believe that these inspectors are slower than average?
Calculate η 2 , the percentage of variance accounted for by treatment.
You roll two fair dice, one red and one green. What is the probability of getting a number less than 5 on both?
Evaluate the factor effects. Find out which factors are significant in explaining yield.
Nicotine patches are often used to help smokers quit. Does giving medicine to fight depression also help? A randomized double blind experiment assigned 244 smokers to receive nicotine patches and another 245 to receive both a patch and the antidep..
Determine the test sequence that minimizes the total expected cost of testing an item. Prove that your proposed sequence is optimal in minimizing the total expected cost of testing an item.
A brand name has 60% recognition rate. if the owner of the brand wants to verify that rate by beginning with a small sample of 5 randomly selected consumers, find the probability that exactly 3 of the 5 consumers recognize the brand name. Also fin..
When 297 college students are randomly selected and surveyed, it is found that 126 own a car. Find a 99% confidence interval for the true proportion of all college students who own a car.
Assuming the tires are selected at random from among all tires being produced, how many tires in the shipment of 3000 are expected to have a lifetime that is less than 35,000 miles?
A random sample of eight adults aged 30 years were asked how much they spent on medical costs in the year 2011. The following data were measured.
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