Mathematics, 08.11.2019 06:31, naomi5321
Abank manager wanted to double-check her claim that recent process improvements have reduced customer wait times to an average of 3.3 minutes, with a standard deviation of 0.9 minutes. to testthis, she randomly sampled 25 customers and recorded their wait times. the average wait time of the customers in the sample was 3.8 minutes. assuming the claim about wait time is true, what is the probability that a random sample of n=25 customers would have a sample mean as large as or greater than 3.8 minutes? what should the manager conclude about her claim?
p(x> or = 3.8) = (round to four decimal places as needed)
what conclusion should the manager draw about her claim of improved service times?
choose one.
a) the manager is accurately estimating wait times
b) the manager is underestimating wait times
c) the manager is overestimating wait times
d) the customers are overestimating wait times.
Answers: 3
Mathematics, 21.06.2019 16:20, hann647
Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants
Answers: 1
Mathematics, 21.06.2019 18:30, jwagner1580
Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).
Answers: 1
Mathematics, 21.06.2019 19:30, SMURFETTE86
Identify the number 127 as a rational or irrational. explain
Answers: 2
Abank manager wanted to double-check her claim that recent process improvements have reduced custome...
History, 28.11.2019 03:31
Biology, 28.11.2019 03:31
Biology, 28.11.2019 03:31
Mathematics, 28.11.2019 03:31
Biology, 28.11.2019 03:31
History, 28.11.2019 03:31
Business, 28.11.2019 03:31