State 95% confidence intervals of revenue for the Jurong East and Clementi retail outlets separately

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Cupcakes Distribution CupCakesSG.com is a confectionary business specializing in cupcakes. They have opened retail outlets in many shopping and neighbourhood centres. Most of their revenue comes from the sale of cupcakes from their retail outlets. They occasionally cater to parties and events. They have opened a new outlet in Jurong East one year ago. However, their revenues are less than those of their nearest outlet in Clementi. It is in similar neighbourhood location and has approximately the same space. The general manager, Mr Aaron Kan, is concerned that the revenue is too low. The management will like to close this outlet and open at a different location but Mr Kan feels he can improve this outlet’s business. He identified a few possible reasons namely the number of flavour offerings and customer satisfaction. Jurong East outlet only offers six of the ten flavours available whereas Clementi outlet offers all ten. He also feels that customer satisfaction is lower at Jurong East outlet. Mr Kan engaged you to analyse data of the past one year (see file cupcakessg_data.xlsx

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