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The sugar content of the syrup in canned peaches is normally distributed. A random sample of n 10 cans yields a sample standard deviation of s 4.8 milligrams. Calculate a 95% two-sided confidence interval.
Can you conclude that the information in the article is untrue? Use the 0.05 significance level. Determine the p-value and explain its meaning.
In addition, the gender of the respondent is noted. After analyzing the results the following table of joint probabilities was produced: Find the probability that a customer who rates Windsor as excellent is a man. 0.45
The mean noise level for 24 hospital operating rooms was 56.3 dBA and the standard deviation was 7.5 dBA. At α = .05 can it be concluded that there is a difference in means?
Find a value of p such that when 10,000 bits are received, the expected number of errors is at most 10 and using this value of p what is the probability of no errors? Of at least 1? of at least 10?
Adults is approximately normal with a mean of 191 lbs. and a standard deviation of 20 lbs. Using the 68-95-99.7 rule. What percent of males weigh more than 211 lbs?
The random variable x, which is the number of occurrences of an event over an interval of ten minutes. It can be assumed that the probability of an occurrence is the same in any two time periods of an equal length.
A company has developed the new battery, but the average lifetime is unknown. In order to estimate the average, a sample of 150 batteries is tested and an average lifetime of this sample is found to be 250 hours.
Approximately how large should n be
Below is a plot of the Olympic gold medal winning performance in the high jump (in inches) for the years 1900 to 1996.
What is the probability that exactly 5 cars will arrive in a given hour and what is the probability that at least 3 cars arrive in a given hour ?
a game consist of spinning a spinner and then rolling a number cube. the spinner is equally likely to land on any 1 of
Use the trend equation to calculate the points for 2003 and 2005. Plot them on the graph and draw the regression line.
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