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来源：百度知道 编辑：UC知道 时间：2024/04/29 21:16:42
2. Dole Pineapple, Inc., is concerned that the 16-ounce can of sliced pineapple is being overfilled. Assume the population standard deviation of process is 0.03 ounces. The quality-control department took a random sample of 50 cans and found that the mean weight was 16.05 ounces and the 15% of cans each of which weight is less than 15.8 ounces.
a. At 0.05 level of significance, can we conclude that the mean weight is greater than 16 ounces?
b. Develop a 95 percent confidence interval of population percentage.
``帮忙做下 ``最好有过程 谢谢了````
a. At 0.05 level of significance, can we conclude that the mean weight is greater than 16 ounces?
b. Develop a 95 percent confidence interval of population percentage.
``帮忙做下 ``最好有过程 谢谢了````
2 。杜尔凤梨公司，关注的是， 16盎司的切片菠萝正在溢出。假设人口标准偏差的过程是0.03盎司。在质量控制部门采取了随机抽样调查了50罐和发现，平均重量是16.05盎司和15 ％的罐每个重量小于15.8盎司。
字母a.在0.05水平的重要意义，我们可以得出这样的结论：平均重量大于一十六盎司？
湾制定一个百分之九十五的信赖区间的人口比例。