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Liula [17]
3 years ago
13

Suppose we fit a regression line to predict the number of incidents of skin cancer per 1,000 people from the number of sunny day

s in a year. For a particular year, we predict the incidence of skin cancer to be 1.5 per 1,000 people, and the residual for this year is 0.5. Did we over or under estimate the incidence of skin cancer? Explain your reasoning.
Mathematics
1 answer:
Jet001 [13]3 years ago
6 0

Answer: The incidence of skin cancer (melanoma) has been underestimated.

Step-by-step explanation: The frequency of melanoma is more than 20 times higher in whites than in black Americans. In general, the risk of melanoma in the course of life is approximately 2.6% (1 in 38) for whites, 0.1% (1 in 1.000) for black people and 0.58% (1 in 172) for Hispanics. the risk for each person can be affected by a different number of factors.

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To investigate the relationship between age and preference for two mayoral candidates in an upcoming election, a random sample o
OLga [1]

Answer:

0.15401

Step-by-step explanation:

Given that test statistic = 3.7408

From the question, we could deduce that, this is scenario could be analysed A ONE - WAY analysis of Variance method as it has one independent variable, Age subdivided into 3 levels

The test statistic value obtained is the Chisquare (χ²) value, which equals 3.7408

To Obtain the requested Pvalue, we need the degree of freedom, which is :

(Number of columns - 1) * (number of rows - 1)

Number of candidates = 2

Number of levels = 3

Hence,

Degree of freedom = (3 - 1) * (2 - 1) = 2 * 1 = 2

Using the Chisquare Pvalue calculator or distribution table :

χ²;3.7408, 2 = 0.154062

Pvalue = 0.1541

3 0
3 years ago
Which of the following are solutions to the equation below ?
Ad libitum [116K]
The equation factors into (x+2)(x+6) = 0. The answers to this question are -2 and -6.

8 0
3 years ago
Mathematics
Vladimir [108]

Answer:

there no data

Step-by-step explanation:

Find the median of the first and third quartiles81, 69 ,90, 79, 59, 125, 95, 116, 183, 97, 92, 50, 122, 55, 9250, 55, 59, 69, 79, 81, 90,   92,     92, 95, 97, 116, 122, 125, 183.The first quartile: 50, 55, 59, 69, 79, 81, 90: median of the first quartile is 69The third quartile: 92, 95, 97, 116, 122, 125, 183: median of the third quartile is 116.The interquartile range is the difference between the median of both the first and third quartile:  which is 116 - 69 = 47.There are no outliers in this set of data

4 0
1 year ago
Brandon has a garden in his backyard he picked 66 from six tomato plants what is the ratio of tomato plants two tomatoes picked
Tom [10]
11 Picked Off 6 Plants. 
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3 years ago
How many times 28 go in to 3
Archy [21]
28 divided by 3 is 9.33333333
3 divided by 28 is 0.10714286
4 0
3 years ago
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