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A system with an axle is pivoted on the centre as shown in Figure 1 below. It is connected with a weight, 5 kg at one end and a wheel with weight 8 kg at the other end. The wheel radius is 40 cm and rotates with a speed 800 rpm counter-clock wise looking from right-side. Determine the precession velocity and direction of the system at vertical axis through the axis centre.
A geologist you spoke with is concerned about the rate of land erosion around the base of a dam. Another geologist is studying the magma activity within the earth in an area of New Zealand known for its volcanic activity.
In a supermarket 20% shoplifters usually get caught, if a random sample of 8 shoplifters is selected. Find the mean and variance of the distribution. What is the probability that 3 will get caught?
If the hotel currently has 84 guests, find the probability that there will not be enough hot water. Does the current system appear to be effective?
Graph the inequality below on the number line. b>10
Is it sensible to conclude that mean weekly salary of school teachers is lower at .05 level of significance? Explain why?
Your company produces a product in a market that has grown by 10% per year for the past 15 years. According to your estimate, the market is currently at 30% of saturation. Predict sales for the next 20 years.
What is the major difference between finding significance and confidence intervals using population samples or using population proportions?
A sample of 25 concession stand purchases at the October 22 matinee of Bride of Chucky showed a mean purchase of $5.29 with a standard deviation of$3.02.
What is the formula is for a population with a mean of u=60 and a standard deviation of sigma=24. Find the z score corresponding to the sample m=63 for a sample of n =16 scores,.
A transatlantic plane carries 140 passengers. It is known that the average weight of all passengers on that plane is 147.14 pounds, that the men on that plane weigh on the average 170 pounds, and women 130 pounds. How many men and how many women w..
A sample of 40 ovservations is selected from one population. The sample mean is 102 and the sample standard deviation is 5. A sample of 50 observers is selected from a second population.
A computer is used and it is found that the P-value = 0.0016. What can you state about the sample (independent or dependent) and what can you conclude about the evidence?
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