Mathematics, 05.07.2020 14:01 shaydog7107
The average production cost for major movies is 65 million dollars and the standard deviation is 18 million dollars. Assume the production cost distribution is normal. Suppose that 39 randomly selected major movies are researched. Answer the following questions. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X~ N(,)b. What is the distribution of Xbar?Xbar~N(,)c. For a single randomly selected movie, find the probability that this movie's production cost is between 66 and 69 million dollars. d. For the aroup of 39 movies, find the probability that the average production cost is between 66 and 69 milion dollars e. For part d), is the assumption of normal necessary? a) No b) Yes
Answers: 1
Mathematics, 21.06.2019 19:30
Now max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 1
Mathematics, 22.06.2019 02:30
Adoughnut shop charges $0.50 for each doughnut and $1 for a carryout box. shirley has $10 to spend. which inequality can be used to find d, the number of doughnuts she could have bought if she also wants them in one carryout box?
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Mathematics, 22.06.2019 02:50
Determine the following data for the quadratic relation f(x) = -3(x+2)(x-3)? i. direction of opening: ii. x-intercepts: iii. y-intecept: iv. axis of symmetry: v. vertex:
Answers: 3
Mathematics, 22.06.2019 02:50
The graph of f(x) shown below has the same shape as the graph of g(x)=x^3-x^2 but it is shifted to the left 2 units what is its equation
Answers: 2
The average production cost for major movies is 65 million dollars and the standard deviation is 18...
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