A random sample of shoppers at a convenience store are selected to see how much they spent on that visit. The standard deviation of the population is $6.94. How large a sample must be selected if the researcher wants to be 99% confident of finding whether the true mean differs from the sample mean by $1.02? Round-up your final answer to the next whole number.

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Q: Check here for instructional material to comple 2 Evaluate F = for s₁ = 5.94 and s2 = 5.46. 2 S $2

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