1. The table below shows average temperatures recorded over a five-day perlod last winter (a) Calculate the mean values, X, of these temperatures (b) Calculate the standard deviation of the average temperatures. Clearly show all your calculation (c) Find confidence interval at 90% and 99% Days Temperature (C) 21 23 17 25 12 19
1. The table below shows average temperatures recorded over a five-day perlod last winter (a) Calculate the mean values, X, of these temperatures (b) Calculate the standard deviation of the average temperatures. Clearly show all your calculation (c) Find confidence interval at 90% and 99% Days Temperature (C) 21 23 17 25 12 19
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Transcribed Image Text:1. The table below shows average temperatures recorded over a five-day perlod last winter
(a) Calculate the mean values, X, of these temperatures
(b) Calculate the standard devlation of the average temperatures. Clearly show all your calculations
(c) Find confidence interval at 90% and 99%
Days
iemperatvre (C)
21
23
17
25
12
19
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