Find a 99% confidence interval for the true proportion
when 319 college students are randomly selected and surveyed, its is found that 120 own a car. find a 99% confidence interval for the true proportion of all college students who own a car.
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The ticket sales for sporting events at the new Civic Arena are believed to be normally distributed with a mea 1.The ticket sales for sporting events at the new Civic Arena are believed to be normally distributed with a mean of 12,000 and a standa
We are writing about Identifing a situation in which an individual made a decision to engage in behavior that violated social values, beliefs, attitudes, and/or morals that deals with(cheating on taxes).
determine the mean for the eggs' weights. Assume that the distribution of the weights is NORMAL and the Standard deviation = .4 ounces.
Comparing the weight of every person in a group of people before they went on a diet with their weight after they completed the diet program. I would want to know whether each person's weight after the program significantly greater than their weig
A study of cats and dogs found that 29 of 50 cats and 19 of 50 dogs slept more than 10 hours per day. At the 0.05 level of significance, is there sufficient evidence to conclude that a difference exists between the proportions of cats and dogs tha
A certain poultry farmer finds that 7% of his eggs are underweight, and that 14% weigh over 72 grams. If a normal model is appropriate, what would the standard deviation of his egg weights be?
The lifetime of automobile tires of a certain brand are found to follow an exponential distribution with mean 30 (in thousands of miles). Find the probability that one of these tires will last
Describe two types of mental shortcuts that you make daily that help you to predict human and/or social behavior. Provide examples. How have these mental shortcuts led to errors in predicting human or social behaviors? Describe two examples.
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