According to a survey, high school girls average 100 text messages daily (the boston globe, april 21, 2010). assume the population standard deviation is 20 text messages. suppose a random sample of 50 high school girls is taken. a. what is the probability that the sample mean is more than 105? (round answer to 4 decimal places.)

The monthly payment m of a loan of amount p for y years with an interest rate r can be calculated by the formula: m = p(r/12) 1 â’ (1 + r/12)â’12y calculate the monthly payment and the cummulative total payment for a $100,000 loan with an interest rate of 4.85% if taken out for 10 years, for 11 years, etc., up to a 30 year term. display the results in a three-column table where the first column is the number of years, the second is the monthly payment, and the third is the cummulative total payment. note: use format bank; for this problem. also, remember to represent the interest rate as a decimal (e. g. 0.0485) 2. a torus-shaped water tube is designed to have a volume of 8, 000in3 . the volume of the tube, v , and its surface area, s, are given by: v = 1 4 ď€ 2 (a + b)(b â’ a) 2 s = ď€ 2 (b 2 â’ a 2 ) if a = kb, determine s, a, and b for k = 0.2, 0.3, 0.7. display the results in a table

As manager of kids skids, meghan wants to develop her relationship management skills. in order to do this, she learns how to

Acompany that adapts its product mix to meet the needs of a new market is using which of the following global marketing strategies market development diversification strategy product development undiversified