Heather runs a successful lawn-mowing business. She would like to estimate the true mean amount of time it takes for her employees to mow a lawn. To do so, she selects a random sample of 30 customers and records the time it
takes the employees to mow their lawns. The 90% confidence interval for the true mean time it takes for her
employees to mow a lawn is 40-55 minutes. Which of the following would decrease the width of the interval?
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With both problems. a.s.a.p directions on photo ^

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?