Sunday

March 29, 2015

March 29, 2015

Posted by **Anonymous** on Sunday, July 24, 2011 at 2:44pm.

Would you reject the manufactures claim at a 5% significance level? Explain

- Statistics -
**PsyDAG**, Monday, July 25, 2011 at 2:06pmZ = (mean1 - mean2)/standard error (SE) of difference between means

SEdiff = √(SEmean1^2 + SEmean2^2)

SEm = SD/√n

If only one SD is provided, you can use just that to determine SEdiff.

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion related to that Z score. Is it less than .05?

**Answer this Question**

**Related Questions**

stats - A manufacturer of automobile batteries claims that the distribution of ...

stats of biologists - a manufacturer claims that the life time of a certain ...

Statistics - Hi! I've been stuck on this question for a while. I know that I ...

math-statistics - A manufacturer claims that the life span of its tires is 50,...

Statistics - . A certain company makes 12-volt car batteries. After many years ...

Statistics - Suppose that an automobile parts wholesaler claims that .5 percent ...

marketing - Binomial probability distributions are used in business, science, ...

Statistics - A certain company makes 12-volt car batteries. After many years of ...

Math - LongLast Inc. produces car batteries. The mean life of these batteries ...

math - Suppose that an automobile parts wholesaler claims that .5 percent of the...