Please help by providing detailed explanations 1 Plaza Gallery in Chicago sells home furniture online and is concerned about some of theirshipments to customers arriving late. Five days were randomly selected and the number of lateshipment complaints were recorded. The observations were 3, 5, 1, 9, and 6.a. Find the sample variance and sample standard deviation for these data.b. If each observation in the above data is multiplied by a half (0.5), what will be the varianceand the standard deviation of the new data? No need of calculations.c. Under what circumstances, the variance and hence the standard deviation will be 0(i.e. s =0 )?2 The manager of a Sobey store is interested in characterizing the distribution of purchasesmade by personal check. In a random sample of check amounts (in dollars), the shape of thedistribution is approximately mound shaped with x=37.5 and s =5.2.a. Approximately what proportion of observations is between 27.1 and 47.9?b. Approximately what proportion of observations is greater than 53.1 or less than 21.9?c. Approximately what proportion of observations is between 32.3 and 47.9?

Name: Please help by providing detailed explanations 1 Plaza Gallery in Chic
Uploaded: 2024-03-20T07:07:37.000Z
Channel: Bartleby
Description: Please help by providing detailed explanations 1 Plaza Gallery in Chicago sells home furniture online and is concerned about some of theirshipments to customers arriving late. Five days were randomly selected and the number of lateshipment complaints