Assuming normality and equality of variances would you

Reference no: EM13607374

A sample of 220 items turned out, during a given week by a certain process, had average weight of 2.46 pounds and standard deviation of 0.57 pounds. During the next week a different lot of raw material was used, and the average weight of a sample of 205 items turned out that week was 2.55 pounds and the standard deviation was 0.48 pounds. Assuming normality and equality of variances, would you conclude from these results that the mean weight of the product had increased significantly at the 5% level of significance during the second week?

Reference no: EM13607374

Questions Cloud

For a diffusion analysis where the temperature is not a : a for a diffusion analysis where the temperature is not a fixed variable calculate the diffusivity of nickel in iron at

Overview of direct and indirect methods evaluate the : overview of direct and indirect methods evaluate the comments that follow as being true or false. if the comment is

A consumer group rated 12 manufactured products imported : a consumer group rated 12 manufactured products imported from a single source on a scale of 1 to 10. the data are shown

For each sketch keep the direction vector within one unit : for a crystal with a cubic structure sketch its unit cells showing the following crystallographic directionsa 011 b 212

Assuming normality and equality of variances would you : a sample of 220 items turned out during a given week by a certain process had average weight of 2.46 pounds and

Two small plastic spheres are given positive electrical : two small plastic spheres are given positive electrical charges. when they are 20.0cm apart the repulsive force between

Equipment transaction and cash flow reporting dec 31 19x4 : equipment transaction and cash flow reporting dec. 31 19x4 dec. 31 19x3 land 94000 94000 equipment 652000 527000 less

Ac consulting company has purchased a new 18038 copier this : ac consulting company has purchased a new 18038 copier. this overhead cost will be shared by the purchasing accounting

Compute the current and quick ratios for each of the three : 1. liquidity ratios. edison stagg and thornton have the following financial information at the close of business on

User Account

All Pages