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Business statistics

            Although experts disagree on the exact statistics, the rate of failure for new small businesses is significant. Also, even for established small businesses, the risks to success and survival are great and constantly changing in today’s market conditions....

The minimum payment(s)

  In a survey of 800 US adults, 90 are making the minimum payment(s) on their credit cordfs). Construct a 95% confidence interval for the population proportion p and interpret your results.

Confidence interval for the population mean

  The weekty time (in hours) spent doing homework for 18 randomly selected high school students is listed below. 12.0 11.3 13.5 11.7 12.0 13.0 15.5 10.8 12.5 12.3 14.0 9.5 8.8 10.0 12.8 15.0 11.8 13.0 a. Construct a 99% confidence interval for the population mean....

Construct a confidence interval

Find the critical value c. necessary to construct a confidence interval at the level of confidence, c. and sample size n. Round to the nearest 1000’h. c = 0.95, n=20 Find the margin of error for the values of c, s, and n. Round to the nearest 10001h: c = 0.90 s...
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