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A real estate research firm monitors the cost of apartment rentals in a large Manitoba city. The mean rental rate for a two bedroom apartment in mid 2008 was $850/month.
A recent random sample of 64 two bedroom apartments showed a mean rental rate of $909.25.
Based on historical data, a population standard deviation of o=$200 may be assumed.
Does the recent sample allow the research firm to conclude that the mean apartment rental now exceed $850/month?
Formulate and test the appropriate hypotheses using the p-value approach. What is the p value for eh test? should the research firm reject the null hypothesis at a=0.025? What conclusion should they make?
Find the probability that he will answer at least 3 questions correctly.
(a) Identify the null hypothesis and the alternative hypothesis.
Let X be a normally distributed random variable with mean 600 and variance 10,000. Find two values x1 and x2 such that P(X > x1) = 0.01 and P(X > x2) = 0.05.
the regression line y -3 2.5 x has been fitted to the data points 28 60 20 50 10 18 and 25 55. the sum of the squared
find The probability that it is at least two hours until the first failure occurs, The probability that it is no more than six hours until the first failure occurs and The average time to the first failure.
What factors do you think the judge should take into consideration when trying to arrive at a decision on how to ensure the defendant's right to a public
A firm finds that the demand for its product can be represented mathematically as: Qd = 1000 - 5P
a. Give a point estimate of the mean time required to handle a customer complaint. b. What is the standard deviation of the point estimate given in (a)?
For the binomial sample information summarized below, indicate whether the sample size is large enough to use the large sample approximation to construct a confidence interval for p.
The confidence interval estimate of the population mean will be __________ for a 95% confidence level than for a 90% confidence level. Narrower or Wider?
An insurance institute conducted tests with crashes of new cars traveling at 6? mi/h. The total cost of the damages was found for a simple random sample
If the agent has enough time to contact only 15 customers, how confident can she be of selling all four houses within the available time?
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