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In a recent survey of 800 Quebec residents, 28 % thought that Quebec should seperate from Canada. In the same survey, 82 % agreed Quebec society is distinct from the rest of Canada.
a) Find 95% confidence interval for the proportion of Quebec residents who would like Quebec to seperate from Canada.
b) Find 95% confidence interval for the proportion of Quebec residents who think quebec society is distinct from the rest of Canada.
Suppose that your sample mean is 1175 and that your sample standard deviation is 100. Using α=0.05, what is the appropriate conclusion you should draw from your sample?
A student is selected at random and found to have a GPA of less than 2.5, what is the probability that the student is from a private school?
The typical supermarket trip takes a mean of 22 minutes
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the mean weight of loads of rock is 50.0 tons with a standard deviation of 12.0 tons. if 16 loads are chosen at random
1.a researcher wanted to know if the content of television programs has an impact on viewers recall of ad content. he
inverse probability based on normal distribution.the mean price of new homes from a sample of houses is 155000 with a
A random sample of n = 4 scores is selected from a population with µ = 80 and σ = 20. On average, how much difference would you expect between the sample mean and the population mean?
Assume that a 95% confidence interval for the mean is 15.0
Why do the critical values from the Chi-square distribution get larger as the degrees of freedom get larger? Recall that this is opposite the pattern for the t-table.
during the 3pm to 5pm time period cars arrive at a banks drive through window at an average rate of 15 customers per
True or False? Bivariate correlation coefficient always has same sign as b 1 in Y = b 0 + b 1 X.
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