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A company produces packets of biscuits with mean weight 125.0 grams and standard deviation 4.0 grams. Each time a consignment of biscuits is sent to a supermarket chain, a sample of 100 packets of biscuits are weighed. If the sample mean is less than 124 grams then the supermarket returns the entire consignment of biscuits to the producer. What is the probability that a consignment will be returned?
Analyze the Regression and draw the scatter plot for results of the Hsp90 affinity and Her-2 degradation studies.
Considering the following data using weighted moving average (4 quarters; 0.4, 0.3, 0.2, and 0.1; where 0.5 is the weight for the most recent quarter)Calculate Mean Absolute Deviation.
Multiple choice questions based on regression - A regression and correlation analysis resulted in the following information
A manufacturer of dodge balls uses a machine to inflate its new balls to a pressure of 13.5 pounds (σ =0.1). When the machine is properly calibrated, the mean inflation pressure s 13.50 pounds, but uncontrollable factors can cause the pressure of ..
At a local supermarket receiving dock, the number of truck arrivals per day is recorded for 100 days. Estimate the mean from the sample.
According to an IRS study, it takes a mean of 330 minutes for taxpayers to prepare, copy and electronically file a 1040 tax form. This distribution of times follows the normal distribution and the standard deviation is 80 minutes.
Correlation based on Scatter Plot - Draw the scatter plot for the variables.
Can we conclude that the mean time for a game is less than 3.50 hours? Use the .05 significance level.
To guarantee that cans of soda are properly filled, some cans are sampled and the amounts measured. The overall average for the samples is 12 ounces.
How many women must be randomly selected to estimate the mean weight of women in one age group. We want 90% confidence that the sample mean is within 3.7 lb of the population mean.
Create a 99 percent confidence interval for mean daily intake of milk. You may suppose daily intake amounts are usually distributed.
Professor Cox needs a volunteer amongst 30 students in his statistical applications course. The average age of his students is 25 years, with the standard deviation of 3 years.
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