7 pts We want to estimate with 95 confidence the average daily sales by various...
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7 pts We want to estimate with 95 confidence the average daily sales by various box stores during the holiday season We take a random sample of 45 box stores in the northwest region and find that on average x 10 254 in sales per day with a standard deviation of sx 1 181 per day a Do we meet the conditions for the CLT Explain why Yes we meet the conditions for the CLT because the sample size is sufficiently large n 45 and the population standard deviation is known This allows us to assume that the sampling distribution of the sample mean is approximately normally distributed regardless of the distribution of the population b What are the degrees of freedom of our t distribution and what is our T score for this confidence interval No work to be shown just checking a calculation n 1 45 1 44 T score 2 0154 C ta form below Write out your confidence interval in x ta
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