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In the following pair of? variables, state whether you believe the two variables are correlated. If you believe they are?correlated, state whether the correlation is positive or negative. Explain your reasoning.
The time it takes to run a marathon and the order of finish (first, second, etc.) is:
A. Positive Correlation because running it in less time will result in a lower finish order.
B. The variables are not correlated.
C. Negative Correlation because running it faster will result in a lower finish order.
Determine a 90 percent confidence interval for the proportion of all packages that contain a substantial number of broken cookies.
A listing posted by the Arby s restaurant chain gives, for each of the sandwiches it sells, the type of meat in the sandwich, the number of calories, and the serving size in ounces. The data might be used to assess the nutritional value of the dif..
Discuss the purpose and significance of those conferences.
The weight of cans of fruit is normally distributed with a mean of 1,000 grams and a standard deviation of 50 grams. What percent of the cans weigh 860 grams or less?
to estimate the mean age for a population of 4000 employees a simple random sample of 40 employees is selected.a. would
X is a random variable with a mean of 64 and a standard deviation of eight. Write the distribution for the sample mean of samples of size 225 drawn
A fair coin is tossed three times. Which of the following sequence is most likely to occur? H H H , H T H, T T T , all equally likey?
Create a probability model for the amount you win at this game.- Find the expected amount you'll win.- How much would you be willing to pay to play this game?
What is the probability that the sample proportion of households spending more than $125 a week is less than 0.23?
Choose a product you are familiar with as a consumer. Answer the following. What type of demand patterns would that product have - cyclical, secular, seasonal, etc. or a combination of several types? Explain.
The graphs display the data points for a linear correlation. Based on the information provided in these graphs, answer the following questions.
A study shows that there is a positive correlation between the size of a hospital (measured by its number of beds x) and the median number of days y.
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