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The 0.5-kg ball strikes the rough ground and rebounds with the velocities shown. Determine the magnitude of the impulse the ground exerts on the ball. Assume that the ball does not slip when it strikes the ground, and neglect the size of the ball and the impulse produced by the weight of the ball.
Calculate the average hours of sleep per night for each sample. According to the 95 part of the 68-95-99.7 rule, 95% of all values of fall within __________ on either side of the unknown mean . What is the missing number?
Computing the probability value using normal distribution - find the normal distribution
The results are shown below. Research question: Are the mean waiting times the same for emergency patients in these four hospitals? Use 0.05 for the significance level in making your decision.
in a study comparing four levels of factor a and two levels of factor b with six observations in each cell the sse3456
The following table contains data for 6 baseball teams. Is there a correlation between the number of hours spent in the batting cages and the number of wins produced?
Compute the Kappa statistic and its standard error regarding reproducibility of the diagnosis of dyspnea in the clinic.
experience has shown that 60 of the time a strike by union workers is settled within two-weeks 55 of the time the union
It is altogether unique in relation to the t-test and the chi-square test of freedom.
Define a relation x ≡ u iff for all n, x =n u. Show that this is an equivalence relation which has at most c different equivalence classes, and for any x, y, and u, if x ≡ u, then (x, y) ∈ C if and only if (u, y) ∈ C . For C = D and y = x , find a..
This semester a sample of 45 students revealed an average cost of books of $395 per student. The Dean of Students believes that the costs are greater this semester. What is the test value for this hypothesis.
Can you conclude that u1 is not equal to u2 at alpha=.05? State the hypothesis in orders of 1-2. construct a 99% confidence interval for the difference in true means. State the confidence interval in terms of 2-1.
What conclusion is appropriate when He cannot be rejected and what conclusion is appropriate when He can be rejected - What is the p-value for the hypothesis test?
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