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Crawling babies, Part I. A study conducted at the University of Denver investigated whether babies take longer to learn to crawl in cold months, when they are often bundled in clothes that restrict their movement, than in warmer months.18 Infants born during the study year were split into twelve groups, one for each birth month. We consider the average crawling age of babies in each group against the average temperature when the babies are six months old (that's when babies often begin trying to crawl). Temperature is measured in degrees Fahrenheit (F) and age is measured in weeks.
(a) Describe the relationship between temperature and crawling age.
(b) How would the relationship change if temperature was measured in degrees Celsius (C) and age was measured in months?
(c) The correlation between temperature in F and age in weeks was r = -0.70. If we converted the temperature to C and age to months, what would the correlation be?
A special SCSU Minnesota license plate starts with two letters selected from 18 possible letters of the alphabet followed by three digits 0-9. How many different SCSU Minnesota license plates are possible?
Find the equation of the tangent line at the indicated point- f(x) = sin(x)sec(x) at x = π.
Select a current issue from the news, or of interest to you, regarding the relationship between two variables. This topic will be used as the basis of a Graphing Two Variables paper and presentation.
Expected Value : key informaiton, After careful testing and analysis, an oil company is considering drilling in two different sites. It is estimated that site A will net $20 million if successful (probability .4) and loose $3 million if not
From this sample she found that the average height was 4.5 meters with a standard deviation of 0.4 meters. Assume that the distribution of the heights of these trees are not strongly skewed and do not have any outliers.
An ice chest contains six cans of apple juice, eight cans of grape juice, four cans of orange juice,and 2 cans of mango juice. What is the probability of selecting a can of apple juice
Let a = (2.6, 4.7)T. Consider the floating-point algorithm with 3 digit rounding. Compute the Householder matrix Q generated by a as a 2x2 array. (Remember to round each computation to 3 digit)
Find the directional derivative at the point P in the direction indicated.
a piece of wire is 38 inches long. the wire is cut into two pieces; then each piece is bent to form a square. Find the length of each piece if three times the area of the larger square exceeds the area of the smaller square by 95.75 square inches.
For three topics/problems from this semester (calculus 2) that interest you, describe it, give an example, and solve it. Your score will depend on the difficulty of the problems/topics you choose and the clarity, completeness, and correctness of your..
explain the difference between the results in part a and part b.
Hypothesis test for single mean
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