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Nostrana [21]
3 years ago
6

The table below gives the list price and the number of bids received for five randomly selected items sold through online auctio

ns. Using this data, consider the equation of the regression line, yˆ=b0+b1x for predicting the number of bids an item will receive based on the list price. Keep in mind, the correlation coefficient may or may not be statistically significant for the data given. Remember, in practice, it would not be appropriate to use the regression line to make a prediction if the correlation coefficient is not statistically significant.
col1 Price in Dollars 23 24 32 37 49
col2 Number of Bids 1 2 6 9 10
Step 2 of 6: Find the estimated y-intercept =-0.488

Step 3 of 6: Determine the value of the dependent variable yˆ at x=0 is = -0.488

Step 4 of 6: Determine if the statement "Not all points predicted by the linear model fall on the same line" is False

Step 5 of 6: Substitute the values you found in steps 1 and 2 into the equation for the regression line to find the estimated linear model. According to this model, if the value of the independent variable is increased by one unit, then find the change in the dependent variable =0.290

Step 6 of 6: Find the value of the coefficient of determination =0.928

Mathematics
1 answer:
lutik1710 [3]3 years ago
6 0

Answer:

Step-by-step explanation: see attachment below

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For her to check whether there is an outlier in the data, she needs to find the mean of the set of data. An outlier is a value in a set of a data that varies considerably from other data in a dataset. It may be larger or smaller than other set of datas. An outlier can affect the decision of a set of data to be analysed if nor taken care of.

From the data, the possible outliers are $99 and $345

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Hence the value that would best represent the central tendency is $177.78

5 0
3 years ago
8% of what number is 2?
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Answer:

The number is 25

Step-by-step explanation:

Is means equals and of means multiply

8% *N = 2

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