Suds-a-Lot conducted a study that showed 97% customer satisfaction, with a standard deviation of 1%. The sample

included 25 people who appeared in one of their

commercials, during the past 5 years.

Feel Fresh conducted a study that showed 90% customer

satisfaction, with a standard deviation of 4%. The random

sample consisted of 100 people, who had recently

purchased one of their products.

Which of the company claims is more believable and why?

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

Determine the lengths of the sides of the rectangle using the given area. give answers both exactly and approximately (to the nearest tenth). the area of the rectangle is 46 cm2.

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. what can you conclude? 2(0.21) = 0.42 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant. 0.21 > 0.05; the test is statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 79% of the time, so the test is not statistically significant. p = 1 - 0.21 = 0.79 > 0.05; the test is statistically significant.