2. the caffeine content of a random sample of 21 cups of black coffee dispensed by a new machine is measured. the
mean and standard deviation for the sample are 110 mg and 5.0 mg, respectively. construct a 98% confidence
interval for the population mean amount of caffeine..
*e=tcls.
e= 2.528 1 8 1 ) = 2
cmc112.76

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

where is the diagram? shown below where? ?

step-by-step explanation: