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The linear trend equation for the following data is:
Month Value of fund1 42 63 94 125 146 167 19
a] What is the predicted values of the fund in the period t = 1?
b] What is the predicted value of the fund in the period 3, and period 7?
c] Find the residual values (error) for period 3, and period 7
The population of IQ scores forms a normal distribution with a mean of µ = 100 and a standard deviation of o = 15. What is the probability of obtaining a sample mean greater than M = 105.
Test the claim that the mean age of the prison population in one city is less than 26 years. Sample data are summarized as n = 25, x = 24.4 years, and s = 9.2 years. Use a significance level of α = 0.05.
Probability based on addition rule - Find the probability that a randomly chosen sold automobile from this sample is silver or an SUV?
Find the minimum amount of water pumped in 30 days. Let y be the total number of gallons pumped x days after pumping being. Note that (0,0) is on graph of the equation.
What level of confidence is associated with an interval of .400513 to .515487 for the long run proportion of new product placements?
A seed distributor claims that 80% of its beet seeds will germinate. How many seeds must be tested for germination in order to estimate p, the true proportion that will germinate, so that the maximum error of the estimate is " = 0:03 with 90% con ..
You are running a chi-squared test. You have 2 groups with 3 characteristics each, what would your critical value be with an alpha of .025?
Use the trend equation to calculate the points for 2003 and 2005. Plot them on the graph and draw the regression line.
Utilizing the 5% level of significance was there a significant change in cholesterol level. Elucidate your answer to someone who has never ever taken a course in statistics.
Four wheel bearings have been replaced on a company car. The mechanic has selected 4 bearings from a large supply bin. The mechanic is unaware that 10 percent of the bearings fail within the first 100 miles.
47% of students have children under 17 living at home with them. Find the probability that a random sample of 800 students will return more than 50% students with children under 17 living at home with them.
If the test contains 250 questions, what is the probability that Julie will score 75% or lower? (Use the normal approximation to the sampling distribution to solve this problem.)
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