Use the following to answer the following 6 questions Have you ever noticed cric
ID: 3241459 • Letter: U
Question
Use the following to answer the following 6 questions Have you ever noticed crickets chirping on a warm summer night? According to research, the amount crickets chirp can possibly be used to predict outdoor temperature. The following analysis represents the relationship between cricket chirps per second and outdoor temperature oF for random sample of 21 summer evenings. Cricket Chirps per Second vs Temperature Residuals 15 16 17 18 19 20 15 16 17 18 19 20 Chips per Second Chirps per Second Estimate Std. Error t value Pr (>ItI) (Intercept) 35.7855 10, 3462 3.459 0.002630 Chirps 2.6388 0.5997 4.400 0.000308 Use the Routput to answer the following questions. You can use the equation editor or to show yourExplanation / Answer
Ans
here we see that scatter plot shows a linear relationship between two variable one is temperature (dependent variable) and other is explanatory variablesand defined model is known as Single equation model or two variable model
and there are many outlier the observation which are distant from other observation also presents in data
bt second scatterrplot
we see that errors are distributed randomly and follow normal distribution with mean Zero and variance sigma ^2
and mean is Zero because approximately half of the point lie below and upper of central line then on avereage is Zero
now if we want to check the significancy of the variable at 5 percent of intercept term then hypothesis Ho intercept=0 is rejected because t calculated is greater tahn t tabulated (2.093 for 19 df
similarly hypothesis Ho for slope is Zero is rejected
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