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Tomato plants were grown in a greenhouse under treatment conditions consisting of combinations of three soil types (Factor B) and two fertilizers (Fac tor A). Two plants were grown under each of the six treatment combinations. The (coded) yields of tomatoes are recorded below.
Factor B
Factor A
1
6
10
4
8
(a) Make an interaction plot for these data.
(b) Based on the plot in part (a), what model would you suggest?
(c) Find estimates for all the parameters in your model.
A random sample of 900 workers in a particular city found 342 workers who had full health insurance coverage. Find a 95% confidence interval for the true percent of workers in this city who have full health insurance coverage.
The data presented in the table below resulted from an experiment in which seeds of 5 different types were planted and the number of seeds that germinated within 5 weeks after planting was recorded for each seed type.
Calculate the mean and standard deviation for the four sets of replicates and determine if there is a significant difference between each pair of results.
Calculate the interquartile range and construct the less then give
the following problem should be answered in rgenerate 50 normal distributions with mean 15 and standard deviation 3
in a study entitled how undergraduate students use credit cards it was reported that undergraduate students have a mean
Wildlife Hummingbirds Selasphorus sasin is the scientific name for what is commonly called "Allen Hummingbird" This beautiful hummingbird lives on the west coast of the United States and is named C.A. Allen
for the single-sample t test the confidence interval is centered around theselect onea. population mean.b. standard
What is the probability that an account is paid off in less than 13 days? Find the 95th percentile for the payoff time- that is, a time for which 95% of the accounts are paid off in less than that time
A single plant operates three galvanizing lines that are assumed to operate independently. What is the probability that none of the lines experiences a surface finish problem in 40 hours of operation.
Duracell Ltd claim that the life of their batteries in motorised soft toys is approximately normally distributed with a mean of 102.9 hours and a standard deviation of 16.5 hours.
several statistical tests have a way to measure effect size. what is this and when might you want to use it in looking
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