Managerial statistics

Managerial statistics.

1. From the following information:

Age 53 51 55 42 47 49 55 38 30
Glucose Level 79 75 69 55 97 61 86 41 20

A. Fit a regression line and find the Glucose level when the age is 70
B. Find the value of the Karl Pearson’s correlation coefficient and comment on the result.

2. The local ice cream shop keeps track of how much ice cream they sell and the temperature on that day, here are their figures for the last 12 days:
Temperature °C 24° 16° 21° 25° 28° 22° 19° 25° 23° 18° 22° 17°
Ice Cream Sales 25 15 25 35 16 12 22 24 14 31 30 08
Find Spearman Rank correlation from the above information and comment on the correlation between temperature and ice-cream sales.

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Managerial statistics

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