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Heights of 10 year old girls follow an approximately normal distribution with mean of 54.4 and a standard deviation of 2.7 inches.
What proportion of 10 year old girls are shorter than 48 inches?
What is the first quartile of heights of 10 ear old girls?
What is the IQR of heights of 10 year old girls? (note you will need to find two endpoints of the distribution for your calculation)
Assume that a simple random sample is selected from a normally distributed population, use eith the P-value method or the tradiitonal method of testing hypotheses.
Roper ASW conducted a survey to learn about American adults' attitudes toward money and happiness. 56% of respondents said they balance their checkbook at least once a month.
an electrical engineer has two boxes containing different types of resistors. the first box contains 3 resistors of one
What are the main difference between the frequency distribution of continuous data and discrete data.2. How would you present a continuous data as though discrete?
How large of a sample should be studied if the standard deviation from a previous study was 26 cents and he wants his estimate to be accurate to within 15 cents?
Given that the student you choose is a senior, find out the probability of selecting a non-senior?
What signified to you on all of the problems that required a binomial distribution that you were to use a binomial distribution? Which problems required a binomial distribution?
Do you view a chocolate bar as delicious or as fattening? Your attitude may depend on your gender. In a study of American college students, Rozin, Bauer and Catanese (2003) examined the importance of food as a source of pleasure versus concerns ab..
Most traffic lights are set so that there is enough time for pedestrians to cross the road safely. A recent study indicates that a large number of elderly cannot get across the road in the usual 15 seconds allowed.
What size sample would be required to estimate the proportion of unemployed college students if we want the margin of error not to exceed 5 percent?
The publisher reports that 80% of college professors require or recommend that their students purchase some type of textbook package.
When would you use ANOVA at your place of employment, in your education, or in politics? Please share the WORDS that would lead you to the null hypothesis for a specific and simple example
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