In 1990 the 10 most popular names for baby boys in gladwell were given to 3375 babies representing about 18.70 % all baby boys born in gladwell in 1990. in 2000 the 10 most popular names for baby boys in gladwell were given to 2115 babies representing about 14.60% of all baby boys born in gladwell in 2000. how many more baby boys were born in gladwell in 1990 than in 2000. express your answer in the nearest hundred.
how many permutations using one or more letters from the word texas are also permutations using the letters in tennessee? two such permutations to include are st and ts.
if tom travels 150 miles in 1 hour and 45 minutes, what is his speed in feet per second? express your answer as a decimal to the nearest tenth.

(20 points) a bank has been receiving complaints from real estate agents that their customers have been waiting too long for mortgage confirmations. the bank prides itself on its mortgage application process and decides to investigate the claims. the bank manager takes a random sample of 20 customers whose mortgage applications have been processed in the last 6 months and finds the following wait times (in days): 5, 7, 22, 4, 12, 9, 9, 14, 3, 6, 5, 15, 10, 17, 12, 10, 9, 4, 10, 13 assume that the random variable x measures the number of days a customer waits for mortgage processing at this bank, and assume that x is normally distributed. 2a. find the sample mean of this data (x ě…). 2b. find the sample variance of x. find the variance of x ě…. for (c), (d), and (e), use the appropriate t-distribution 2c. find the 90% confidence interval for the population mean (îľ). 2d. test the hypothesis that îľ is equal to 7 at the 95% confidence level. (should you do a one-tailed or two-tailed test here? ) 2e. what is the approximate p-value of this hypothesis?