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A family has 5 children and 1 of them is a boy the percentage of boy is 1/5, or .020. Do you think one could say the chances of any woman having a boy would be 1/5?
Based on your answers to a through d, decide whether or not to reject the null hypothesis at the given significance level. Explain your conclusion in the context of the problem.
A medical doctor wishes to test the claim that the standard deviation of the systolic blood pressure of deep sea divers is less than 450. To do so, she selected a random sample of 20 divers and found s = 432.
Find the maximum total allowable weight if you want a 0.975 probability that this maximum will not be exceeded when 16 males are randomly selected.
What is the appropriate inferential statistical test for the case scenario? Why?
A Correlation matrix (correlation, coefficients and probability level under the hypothesis rho= 0) for a company's sales force (age, years of service, and current sales) is given below. Comment.
Considering the following data using weighted moving average (4 quarters; 0.4, 0.3, 0.2, and 0.1; where 0.5 is the weight for the most recent quarter)Calculate Mean Absolute Deviation.
Assuming that the Styrofoam absorbs a negligibly small amount of heat and that no heat was lost to the surroundings, what is the specific heat capacity of the metal?
Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0.
Find the marginal PMF pY (y). Hint: One possibility is to start with the answer to part (c), but the algebra can be messy. But if you think intuitively about the procedure that generates Y , you may be able to guess the answer.
Given the following ordered data pairs (x, y), compute the value of the linear correlation coefficient r: (2,6) (3,0) (5,15) (5,5) (10,2).
Of the 38 numbers on a roulette wheel, 18 are red, 18 are black and 2 are green. If the wheel is balanced, the probability of the wheel landing on red is 0.474.
Half of the college graduates are married. What is the probability that a randomly chosen worker is: Neither married nor a college graduate?
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