5. In a study done by the National Health Foundation, it wasdetermined that the
ID: 2915363 • Letter: 5
Question
5. In a study done by the National Health Foundation, it wasdetermined that the mean number of headaches for woman is 14 peryear with a standard deviation of 2.5.How many standard deviations is 19 from the mean?
2
3
-3
1
16. The earnings per share (in dollars) for McDonald's Corporationare given by the equation y-hat = 0.668 + 0.046a - 0.015b where 'a'represents total revenue (in billions of dollars) and 'b'represents total net worth (in billions of dollars). Predict theearnings per share when total revenue is $10 billion and net worthis $5 billion.
1.053
0.778
0.061
0.984
11. The stem and leaf plot for the following data is displayedbelow: {70, 78, 76, 55, 43, 56, 32, 67, 68, 71, 75, 67, 60, 62, 58,75, 21}
Stem and Leaf Plot:
2 | 1
3 | 2
4 | 3
5 | 5 6 8
6 | 0 2 7 7 8
7 | 0 1 5 5 6 8
What is the shape of the data distribution? (Points: 5)
uniform
skewed left
skewed right
symmetric
Explanation / Answer
5. In a study done by the National Health Foundation, it wasdetermined that the mean number of headaches for woman is 14 peryear with a standard deviation of 2.5. How many standard deviations is 19 from the mean? 2 3 -3 1 16. The earnings per share (in dollars) for McDonald's Corporationare given by the equation y-hat = 0.668 + 0.046a - 0.015b where 'a'represents total revenue (in billions of dollars) and 'b'represents total net worth (in billions of dollars). Predict theearnings per share when total revenue is $10 billion and net worthis $5 billion. 1.0530.778 0.061 0.984 11. The stem and leaf plot for the following data is displayedbelow: {70, 78, 76, 55, 43, 56, 32, 67, 68, 71, 75, 67, 60, 62, 58,75, 21} Stem and Leaf Plot: 2 | 1 3 | 2 4 | 3 5 | 5 6 8 6 | 0 2 7 7 8 7 | 0 1 5 5 6 8 What is the shape of the data distribution? (Points: 5) uniform skewedleft skewed right symmetric
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