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Interpret the slope of the fitted regression Home Price = 125,000 + 150 Square Feet. (b) What is the prediction for Home Price if Square Feet = 2,000? (c) Would the intercept be meaningful if this regression applies to home sales in a certain subdivision?
Nine percent of undergraduate students carry credit card balances greater than $7000. Presume 10 undergraduate students are selected randomly to be interviewed about credit card usage.
If the company's report is correct, what is the probability that the average balance of an account in the sample is $383 or less?
A least squares linear trend line is just a simple regression line with the independent variable being time (months or years for example).
Find a 90% confidence interval for the population average µ of the percentage of hospitals providing at least some charity care.
Establish a 99% Confidence interval about the difference in the proportion of the town voters and county voters who favor the proposal.
The article can be on Descriptive Statistics, Probability and the Normal Distribution, Sampling and Sampling Distributions, Regression Analysis, or Time Series Forecasting.
If the organization's claim is correct, what is the probability of having a sample mean of 114.6 or less for a random sample of this size?
A plus four 95% confidence interval for the difference between the two population proportions of wrist injuries is: A. 0.2909 ± 0.1674. B. 0.2909 ± 0.1069. C. 0.2909 ± 0.0907. D. 0.2909 ± 0.1275
A tube of Listerine Tartar Control tooth paste contains 4.2 ounces. As people use the tooth paste, the amount remaining in any tube is random.
Internet users age 12-17 in proportion who opposes ads? Solve manually and then by mega stat. Point to your decision rule, your hypotheses and statistical and management conclusions."
There are four entrances to the Government Center Building in downtown Philadelphia. The building maintenance supervisor would like to know if the entrances are equally utilized.
To give 98% confidence interval for population mean μ, you would use critical value.
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