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Problem 1. We considered Mary's interest in doing a study to see if learning of 6th graders on a math lesson is affected by background noise level. There, she was planning to use 2 noise conditions and then analyze her outcomes using a t-test for independent groups. Describe the study Mary might plan where she would use a one-way analysis of variance (ANOVA) for independent groups instead of a t-test to study differences between noise levels. What is her independent variable here? Describe the conditions she could create for this study. What is her dependent variable? Describe a way to measure the DV so that each participant would have one score at the end that would be on a continuous scale of measurement. Support your responses.
Problem 2.
Consider Mary's study of whether the learning of 6th graders on a math lesson is affected by background noise level. Describe the pros and cons of Mary using a repeated measures design for this study. What would you probably choose to do? Support your responses.
Suppose that each light bulb works independently of the other light bulbs. What is the probability that all eight of the light bulbs work?
an insecticide company exposes 10000 cockroaches to its newest product and exposes another 10000 to their previous
a die is loaded and a 6 comes up with probability 1?4. if the die is tossed twelve times find the probability thata the
At the .05 level of significance, is there evidence of a difference in variability in the shipping time between the two outlets? What decision should the carpet manufacturer make?
A scientist examined the effect of temperature and catalyst on the yield of a reaction. He ran the experiment at both 150° and 200°C with two types of catalyst.
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A sample of households that subscribe to the United Bell Phone Company revealed the following numbers of calls received by each household last week. Determine the mean, median, and standard deviation of the number of calls received.
question the yield on a general obligation bond for the city of davenport fluctuates withthe market.the monthly
in studying the occurence of genetic characteristics the following sample data were obtained. at the 0.05 significance
FINRA is considering three alternatives for providing food services (breakfast and lunch) to its employees: creating a company owned food service and hiring its own staff, hiring an outside vendor to provide food services (outsourcing), or a combi..
a study was conducted of 90 adult male patients following a new treatment for congestive heart failure. one of the
Suppose that possibility of being seated at two restaurants are independent of each other, determine the probability that. Both restaurants will be able to seat you next Saturday night?
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