Mathematics, 21.02.2020 23:36, BigCra
The idle time for taxi drivers in a day are normally distributed with an unknown population mean and standard deviation. If a random sample of 23 taxi drivers is taken and results in a sample mean of 172 minutes and sample standard deviation of 16 minutes, find a 98% confidence interval estimate for the population mean using the Student's t-distribution.
Answers: 1
Mathematics, 21.06.2019 21:30, madisonsimmons1120
Mon wants to make 5 lbs of the sugar syrup. how much water and how much sugar does he need… …to make 5% syrup?
Answers: 2
Mathematics, 22.06.2019 00:30, dogsb4doods
Bocephus has a bag full of nickels and dimes. if there are 3 times as many dimes as nickels, and he has $\$36.05$ in his bag, how many nickels does he have?
Answers: 1
Mathematics, 22.06.2019 00:30, trinitymarielouis
Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.
Answers: 1
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