Mathematics, 22.04.2020 05:03 nancy00
The dean of the Business School at a small Florida college wishes to determine whether theâ grade-point averageâ (GPA) of a graduating student can be used to predict theâ graduate's starting salary. Moreâ specifically, the dean wants to know whether higher GPAs lead to higher starting salaries. Records for 23 of lastâyear's Business School graduates are selected atâ random, and data on GPAâ (x) and starting salaryâ (y, inâ $thousands) for each graduate were used to fit the modelâE(y)equals=beta 0β0plus+beta 1β1x. The results of the simple linear regression are provided below. Suppose aâ 95% prediction interval for y when x=3.00 isâ (16,21). Interpret the interval. y=4.25plus+â2.75x, SSxy=â5.15, SSxx=â1.87, SSyy=â15.17, SSE=1.0075Range of theâ x-values:ââ2.23â3.85Range of theâ y-values:ââ9.3â15.6A. We areâ 95% confident that the starting salary of a Business School graduate will increase betweenâ $16,000 andâ $21,000 for everyâ 3-point increase in GPA. B. We areâ 95% confident that the starting salary of a Business School graduate with a GPA of 3.00 will fall betweenâ $16,000 andâ$21,000.C. We areâ 95% confident that the mean starting salary of all Business School graduates with GPAs of 3.00 will fall betweenâ$16,000 andâ $21,000.D. We areâ 95% confident that the starting salary of a Business School graduate will fall betweenâ $16,000 andâ $21,000.
Answers: 1
Mathematics, 21.06.2019 17:00
Can someone me i’m confused. will give brainliest and a whole bunch of points
Answers: 2
Mathematics, 21.06.2019 19:30
The table below represents the displacement of a fish from its reef as a function of time: time (hours) x displacement from reef (feet) y 0 4 1 64 2 124 3 184 4 244 part a: what is the y-intercept of the function, and what does this tell you about the fish? (4 points) part b: calculate the average rate of change of the function represented by the table between x = 1 to x = 3 hours, and tell what the average rate represents. (4 points) part c: what would be the domain of the function if the fish continued to swim at this rate until it traveled 724 feet from the reef? (2 points)
Answers: 2
Mathematics, 22.06.2019 03:00
Aplane is flying at 32,500 feet. it needs to rise to 36,000 feet in two stages.• in stage 1, it rises 5% of its initial altitude of 32,500 feet.• in stage 2, it rises at a rate of 125 feet per minute.how many minutes does it take for the plane to rise during stage 2?
Answers: 1
Mathematics, 22.06.2019 03:30
Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played she found that the restaurant was playing country 11 times rock & roll 17 times and blues 8 times use the observed frequencies to create a probability model for the type of music the restaurant is playing the next time mahnoor walks in.
Answers: 1
The dean of the Business School at a small Florida college wishes to determine whether theâ grade-po...
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