Question: Current Attempt in Progress Your answer is Incorrect. Try again A department store manager wants to estimate the mean amount spent by all customers at

Current Attempt in Progress Your answer is Incorrect. Try again A department store manager wants to estimate the mean amount spent by all customers at this story at a 90% confidence level. The manager knows that the standard deviation of amounts spent by all customers at this store is $54. What minimum sample size should he choose so that the estimate is within $5 of the population mean? Save for Later Last saved 3 hours ago Saved work will be auto-submitted on the due date Auto- submission can take up to 10 minutes. Attempts: 2 of 5 used Sit

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=+Who belongs? Who is covered by the contracts? Is there white-collar unionization? Do managers belong to unions,

=+such as the dirigenti in Italy?

=+ Are there closed-shop requirements or practices?