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You are using the moving-average forecasting method based upon the last four observations. When making the forecast for the last period, the oldest of the four observations was 1,945 and the forecast was 2,083. The true value for the last period then turned out to be 1,977. What is your new forecast for the next period?
Three times each year, the procurement manager at Phoenix contacts National\'s marketing department to place a monthly order for each of the coming four months.
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 linear correlation coefficient very close to 0 implies that there is a linear correlation between the averages, but a correlation between the averages does not imply a correlation between individuals as the conclusion incorrectly suggest.
Find the mean and variance of the average velocity of the particles and what is the probability that the average velocity is ≥ 10-9 cm/sec?
each student in a class of 80 rolls 8 dice in order to perform inference about the mean of all dice rolls which happens
(a) Compute the arithmetic mean of the subscribers' incomes. (b) Compute the modal and median incomes.
medical researches claim that the mean body temperature is not equal 98.6 degrees f for healthy adults. temperatures
The probability of having a particular genetic disorder is 0.004. If 25 patients are tested for this disorder, what is the probability that 2 of them have this disorder?
Which of the following errors will be associated with the sample? Errors due to interviewer bias and selection bias.
we know many types of data fall into a normal distribution with most of the observations falling towards the middle.
a consumer group is interested in estimating the proportion of packages of ground beef sold at a particular store that
Failure times for a randomly failing component are 3.3, 14.3, 27.1, 41.3, and 92.2 hours. Find the MTTF and standard deviation using: a) moment estimation. b) maximum likelihood estimation.
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