click here if you want a guide to this question Suppose 400 customers spend an average of $142.9 with standard deviation
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click here if you want a guide to this question Suppose 400 customers spend an average of $142.9 with standard deviation
click here if you want a guide to this question Suppose 400 customers spend an average of $142.9 with standard deviation $27.3. Find a 95% confidence interval for u, if 95% of sample means are within 1.984 standard errors of the population mean a. between 88.74 and 197.06 b. between 141.55 and 144.25 c. between 140.19 and 145.61 O d. between 142.76 and 143.04 e. between 192.35 and 197.77
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