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1. The so-called "Gambler's Fallacy" makes the mistake of not recognizing:
a) the low-probability events b) the high-probability events c) the independent-events situation d) that losses occur more frequently than wins 2. Probability is based on how often a given event
a) will occur out of 100 times b) will occur out of 52 times c) will occur just once d) will not occur at all
What sample size must you take to be 96% confident that the results will be within $.75 of the true mean cost per call?
A sample of 100 observations has a mean of 2.99 and a standard deviation s equal to 0.5 Conduct the following test of hypotheses about the corresponding population mean at a level of significance of α = 0.2
If the voice identifications were made by random guess, find the probability that all 9 victims would select the same person?
The average number of days absent per student per year at West Valley School is 17 days with a standard deviation of 4 days. How many standard deviations from the mean is 6 absent days?
At.01 significance level, can we conclude that 30-year mortgage rate for small banks is less than 6%? Evaluate the p-value.
Compute mean, standard deviation, coefficient of variation and 5 key percentiles for these data.
Based on surveys conducted in 1989 and 1999, a researcher compared the proportion of high school age females interested in a career in science in 1989 with the proportion in 1999. He concluded that the proportions were not significantly different ..
Evaluate the value of the F statistic for Devices- I plan an experiment to test the latest conflicting diet programs. The factor for Diet will involve three different levels: low fat, low carbohydrate, and low calorie. The other factor will involve..
Determine the probability that sample mean is between 7.5 and 8 minutes?
What is the likelihood the sample mean is greater than $22.50 but less than $25.00?
What is the expected shape of the distribution of the sample mean?
Perform a proper analysis. Describe your null and alternative hypothesis, report the p-value. What is your conclusion?
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