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What's on the worksheet
- An electronics maker tests a simple random sample of 35 wireless earbuds from a production run of about 8,000 (made-up data), playing music on each…
- Rolls of packing tape from one supplier are labeled 50 meters long.
- The vineyard manager of a block of several thousand wine-grape clusters picks a simple random sample of 12 clusters and measures each one's sugar…
- A city bike-share system logs tens of thousands of trips a month.
- A furniture store wants a 95% confidence interval for the mean time its customers take to assemble its best-selling flat-pack bookcase, with a…
- A marine biologist measures the length, in centimeters, of each blade of eelgrass in a simple random sample of 10 shoots from a bay meadow of many…
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One sample interval for a mean and sample size: the lesson ›More Chapter 9 worksheets: Inference for means
- 9.1The t distribution and degrees of freedom
- 9.2Conditions for one mean
- 9.3One sample interval for a mean and sample size
- 9.4One sample test for a mean
- 9.5Interval for a difference of means
- 9.6Test for a difference of means
- 9.7Paired data: interval and test for a mean difference