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2. The producers of a new toothpaste claim that it prevents more cavities than other brands of toothpaste. A random sample of 60 people used the new toothpaste for 6 months. The mean number of cavities at their next checkup is 1.5. In the general poplation, the mean number of cavities at a 6 month checkup is 1.73 (s.d. = 1.12).
The owner of a single-family home would like to develop a model to predict electricity consumption in his house, based on average atmospheric temperature in degrees Fahrenheit.
Compute the mean and SD of the probability of the mean and determine the test statistic
ltbrgtas of last year only 20 of the employees in an organization used public transportation to commute to and from
Calculate the slack time for each activity and for each path and looking at only the critical path, find the probability that the store will take more than 23 working days to open.
Health plans use many tools to try to control the cost of prescription medicines. For older drugs, generic substitutes that are equivalent to name brand drugs are sometimes available at a lower cost. Another tool that may lower costs is restrictin..
Why is normality required for standard deviation applicability?
Determine whether the variable of interest has a binomial distribution.
A foreign language course and a psychology course?
The researchers used the available survey data and summarised the nature of the car accidents and if a mobile phone was being used by the driver either during (or immediately before) the accident
Find the average time a plane must wait in line before itcan land.c.Calculate the average time it takes a plane to clear therunway once it has noti?ed the airport that it is in thevicinity and wants to land.d.The FAA has a rule that an air traf..
Research paper about 'The effect of social media on consumers' purchasing decision in Saudi Arabia. Effect of social media on consumers' purchasing decision in Saudi Arabia.
Find a statistics study on Unemployment and explain the five-step process of the study.
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