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A random sample of montreal students in 1996 included 210 students who intended to live in montreal after graduation, and 140 who intended to emigrate. A random sample of montreal students in 2001 included 252 who intended to live in montreal after graduation, and 148 who did not. In the five-year period, is the increase in population proportion of those who intended to live in montreal after graduation statistically significant? Use a 5% significance level. Write down (1) the value of test statistics, (2) p-value, and (3) make a conclusion based on p-value
If we assume that the three random variables involved are independent and uniformly distributed, compute the mean and variance of the amount to be received.
Find mean, median, mode, range, variance and standard deviation separately for every type of business. ow well the model fits the data?
Vioxx, which belongs to a class of drugs known as COX-2 inhibitors, was approved for the treatment of acute pain and chronic pain from arthritis
The Minitab output for a chi-square test of the relationship follows. Based on this output, what can be concluded about the relationship?
You run a two tail t-test. The critical value for this test at the .05 level is a t of 7.82. What value must the obtained t-test statistic be in order to be considered significant at the .05 level?
The linear relationship between the number of bedrooms a house has and the selling price of the house (in dollars) is analyzed for a sample of n = 250 recently.
Three vehicles with a carrying capacity of 12 passengers each are used to ferry 30 international tourists and 5 local tourists from or tambo airport to vilakazi street,soweto. if the logistics manager randomly assigns the tourists to the vehicles, in..
What are the four possible relationships between religious and economic attitudes, according to Tawney.
Based on the sample data, what is the point estimate for the click-through-rate of ad format A?
1. Find the probability that a number greater than or equal to 4 appears on the up face in a single toss of a fair die.
given xn02 where ?2 what is the 25th percentile of this distribution?a -0.67b0.67c -1.34d 1.34e none of the
In a sample of 1100 U.S. adults,172dine out at a restaurant more than once per week. Two U.S. adults are selected at random from the population of all U.S. adults without replacement. Assuming the sample is representative of all U.S. adults, comp..
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