Suppose that we collect a random sample from a normal distribution with mean u and obtain the following data: 4.1; 4.2; 3.9; 3.8; 4.5 What is the sample mean? O a. 4.0 41

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Suppose that we collect a random sample from a normal distribution with mean u and obtain the following data: 4.1; 4.2; 3.9; 3.8; 4,5
What is the sample mean?
O a. 4.0
Ob. 4.1
O c. 4.3
O d. 4.2
Transcribed Image Text:Suppose that we collect a random sample from a normal distribution with mean u and obtain the following data: 4.1; 4.2; 3.9; 3.8; 4,5 What is the sample mean? O a. 4.0 Ob. 4.1 O c. 4.3 O d. 4.2
What is the sample variance?
O a. 0.056
O b. 0.045
O c. 0.075
O d. 0.064
What is the sample standard deviation?
O a. 0.314
O b. 0.343
Oc. 0.274
O d. 0.215
Transcribed Image Text:What is the sample variance? O a. 0.056 O b. 0.045 O c. 0.075 O d. 0.064 What is the sample standard deviation? O a. 0.314 O b. 0.343 Oc. 0.274 O d. 0.215
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