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1. What slope, part 2? If you create a regression model for estimating a student's business school GPA (on a scale of 1-5) based on his math SAT (on a scale of 200-800), is the slope most likely to be 0.01, 1, or 10? Explain.
2. Misinterpretations. An advertising agent who created a regression model using amount spent onAdvertising to predict annual Sales for a company made these two state- ments. Assuming the calculations were done correctly, ex- plain what is wrong with each interpretation.
a) My R2 of 93% shows that this linear model is appropriate.
b) If this company spends $1.5 million on advertising, then annual sales will be $10 million.
in a states pick 3 lottery game you pay 1.28 to select the sequence of three digits such as 222. if you select the
compute a 95 confidence interval for the population mean based on the sample 1 2 3 4 5 6 and 39. change the number from
a researcher obtains an f-ratio with df 2 36 from an independent-measures research study. what is the total number of
Diagnosis tests of medical conditions have several results. The test result can be positive or negative, whether or not a patient has the condition.
The running time for videos is normally distributed with mean 390 and standard deviation 148. suppose a sample of 40 videos are selected, what is the probability that the mean running time of the sample exceeds 360 seconds?
Many companies use sampling to determine whether a batch should be accepted. An (n, c) sampling plan consists of inspecting n randomly chosen items from a batch and accepting the batch if c or fewer sampled items are defective.
q1. in a college 15th of the girs and 18 th of the boys took part in a camp. what fraction of the total no of students
in a randomized trial who should be blinded to which treatment group the patient is assigned?1. the patient2. the
the average movie admission price for a recent year was 7.18. the population variance was 3.81. a random sample of 15
What measure would you use and why? Make sure to provide enough detail about the situations so that others can understand your responses. Work as a correctional officer.
Assignment on the Motivation
rolling a fair twelve-sided die produces a uniformly distributed set of numbers between 1 and 12 with a mean of 6.5 and
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