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1. Assume that the standard deviation of college student IQ's is 10. A random sample of 100 students from a college showed an average IQ of 110. Compute a 95% confidence interval for the mean IQ of students attending this college.
2. In the Idaho State Home for Runaway Girls, 25 residents were polled as to what age they ran away from home. The sample mean was 16 year old and the sample deviation was 1.9 years. Compute a 95% confidence interval for the mean age at which runaway girls leave home in Idaho.
3. The nicotine content of five cigarettes of a brand measured in milligrams are 21,19,23,19,24. Compute a 0.99 confidence interval for the average nicotine content of the brand.
You play a game with two possible outcomes. Outcome A has probability 0.4 and outcome B has probability 0.6. When B occurs you win $2.00; otherwise, you lose $1.00. What is your expected value for this game?
The participants in a television quiz show are picked from a large pool of applicants with approximately equal numbers of men and women.
Find a 99% confidence interval for the population mean number of weekly miles.
Calculate the 95% confidence interval for the rate of positive tuberculin reaction separately for each of the two subpopulation, those with high exposure and those with low exposure.
Find a 95% confidence interval for the population mean selling price of all homes in this neighborhood.
What is the probability that a cereal would both high calorie and high fiber? In other words, what is P (high calorie and high fiber)?
Do the data provide significant support for any preferences among the three brands? Test At the .05 level of significance.
Test for significant differences among weight losses for the five diets, and perform all pair wise comparisons using:
Illustrate a quantitative assessment of what our charts would look like and what these new targets would do to our operations.
Design a Linear programming problem for the flair Furniture Company and find the combination of tables and chairs that the company must produce to maximize profits.
Dividend is expected to grow 7% a year for next 3 years and then at 5% a year after that. Determine the expected dividend per share for each of the next five years?
Consider the following estimated regression equation, based on 10 observations.
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