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An ordinary dice was thrown 50 times and the resulting scores were summarised in a frequency table. The mean score was calculated to be 3.42. It was later found that the frequencies 12 and 9 of two consecutive scores had been swapped. What is the correct value of the mean?
the mean number of shares traded on on the new york stock exchange in june 2004 was 2.4 billion per day. assume that
a sample of 400 racing cars showed that 80 of them cost over 700000. what is the 99 confidence interval for the true
Calculate the expected loss to each person prior to and subsequent to entering into a pooling arrangement. What happens to the standard deviation of the distribution of losses to each individuals subsequent to the pooling arrangement?
Mauricio Cruz, a wine merchant for Cruz's Spirits Emporium, wants to determine if the average price of imported wine is less than the average price of domestic wine. The data obtained is shown in the table below.
Analyze the Regression and draw the scatter plot for results of the Hsp90 affinity and Her-2 degradation studies.
Use the binomial distribution in the Data Analysis add - in to simulate the distribution of men and women among the next ten arrivals at an emergency room, assuming that, on average, six people out of ten who arrive are men.
A certain brand of Green Energy light bulbs was advertised as having an average illumination life-span of 2,500 hours. A random sample of 50 bulbs burned out with a mean life-span of 2,470 hours and a sample standard deviation of 140 hours.
74 cashews, and 45 pecans. At the 0.05 level of significance, conduct a nonparametric test that the machine is mixing nuts in the ratio 5:2:2:1.
Tom Sevits is the owner of the Appliance Patch. Recently Tom observed a difference in the dollar value of sales between the men and women he employs as sales associates.
At Kelsey High School, Mrs. O'brien noted that the students were waiting too long in line for their lunches. After collecting some data, Ms. O'brien determined the mean wait time was 10 minutes.
By using this data and incorporating seasonal effects, predict quarterly turnover for 2010.
If 350 respondents out of a random sample of 1,000 Americans reported that they did not trust their government, what is your estimation at a 99% confidence level of the proportion of the American population who do not trust their government?
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