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An emergency service wishes to see whether a relationship exists between the outside temperature and the...

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Basic Math

An emergency service wishes to see whether a relationship existsbetween the outside temperature and the number of emergency callsit receives for a 7-hour period. The data are shown. EmergencyCalls and Temperatures Temperature x 68 74 82 88 93 99 101 No. ofcalls y 7 4 8 10 11 9 13

a. Describe the linear relationship between the temperature andthe number of calls.

b. Calculate the correlation coefficient, r.

c. Is r statistically significant at the 0.05 level.Explain.

d. Determine the equation of the line of best fit.

e. Calculate and interpret the coefficient of determination, 2 r.

f. Predict the number of calls when the temperature is80degrees.

g. Predict the temperature outside when the number of calls is6.

h. Predict the number of calls when the temperature is 59degrees

Answer & Explanation Solved by verified expert
3.9 Ratings (671 Votes)
Data as belowTemperature xNo of calls y68774482888109311999101131 Linear relationship between variablesThe equation has the form YabX where Y is the dependentvariable thats the variable that goes on the Y axis X is theindependent variable ie it is plotted on the X axis b is theslope of the line and a is the yinterceptFrom the table we can    See Answer
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