The attention span of little kids (ages 3–5) is claimed to be normally distributed with a mean of 15 minutes and a standard deviation of 4 minutes. a test is to be performed to decide if the average attention span of these kids is really this short or if it is longer. you decide to test the hypotheses h0: μ = 15 versus ha: μ > 15 at the 5% significance level. a sample of 10 children will watch a tv show they have never seen before, and the time until they walk away from the show will be recorded. if, in fact, the true mean attention span of these kids is 18 minutes, what is the probability of a type ii error?

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer

Nthe opening scene of the movie raiders of the lost ark, indiana jones replaces a golden statue with a bag of sand. the platform on which the statue is placed is designed to detect the mass of the statue. if the bag of sand has a different mass than the statue, then a mechanism triggers and destruction ensues. the density of gold is about 20\text{ g/cm}^320 g/cm 3 20, space, g, slash, c, m, start superscript, 3, end superscript. the density of sand can be estimated at 2.5\text{ g/cm}^32.5 g/cm 3 2, point, 5, space, g, slash, c, m, start superscript, 3, end superscript. the gold statue can be modeled as a cylinder with height 25\text{ cm}25 cm25, space, c, m and radius 8\text{ cm}8 cm8, space, c, m. in terms of \piπpi, what is the mass of sand indiana jones needs to avoid triggering the mechanism?