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If required, round your answer to one decimal place. What is the forecast for month 8? If required, round your answer to one decimal place. Do not round intermediate calculation. (b) Compute MSE using the average of all the data available as the forecast for the next period. If required, round your answer to one decimal place.
Statistics and Probability questions and answers. A simple random sample of 60 items resulted in a sample mean of 80. The population standard deviation is σ = 15. a. Compute the 95% confidence interval for the population mean. Round your answers to one decimal place. Enter your answer using parentheses and a comma, in the form (n1,n2).
A tank holds 1,000 gallons of water, which drains from the bottom of the tank in half an hour. The values in the table show the volume V of water remaining in the tank in gallons) after t minutes. t (min) 5 10 15 20 25 30 v (gal) 684 445 255 113 28 0 (a) If P is the point (15, 255) on the graph of V, find the slopes of the secant lines PQ when Q is the point on the graph with t = 5, 10, 20, 25 ...
One side will be formed by the external wall of the store, two sides will be constructed of pine boards, and the fourth side will be made of galvanized steel fencing. If the pine Minimizing Construction Costs The management of the UNICO department store has decided to enclose an 826 ft2 area outside the building for displaying potted plants and ...
The population of a community is known to increase at a rate proportional to the number of people present at time t. The initial population P0 has doubled in 5 years. 1)Suppose it is known that the population is 9,000 after 3 years. What was the initial population P0? (Round your answer to one decimal place.) P0 =. 2)What will be the population ...
(Round your answer to one decimal place.) yr Need Help? Read It Chat About It ZillDiffEQModAp10 3.1.005. My Notes The radioactive isotope of lead, Pb-209, decays at a rate proportional to the amount present at time t and has a half-life of 3.3 hours.
A small metal bar, whose initial temperature was 30° C, is dropped into a large container of boiling water. How long will it take the bar to reach 90° C if it is known that its temperature increases 2° during the first second? (The boiling temperature for water is 100° C. Round your answer to one decimal place.)
Transcribed image text: At a certain grocery checkout counter, the average waiting time is 2.5 minutes. Suppose the waiting times follow an exponential density function. (a) Write the equation for the exponential distribution of waiting times. E (t) = Graph the equation and locate the mean waiting time on the graph.
Question: A population of a particular yeast cell develops with a constant relative growth rate of 0.4377 per hour. The initial population consists of 3.9 million cells. Find the population size (in millions of cells) after 4 hours. (Round your answer to one decimal place.) P (4) = x million cells. There are 2 steps to solve this one.
A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a speed of 1.7 m/s, how fast is the length of his shadow on the building decreasing when he is 4 m from the building? (Round your answer to one decimal place.) x m/s