Mathematics, 28.11.2019 06:31 Val03
Dave the jogger runs the same route every day (about 2.2 miles). on 18 consecutive days, he recorded the number of steps on his fitbit. the results were 3,450 3,363 3,228 3,360 3,304 3,407 3,324 3,365 3,290 3,289 3,346 3,252 3,237 3,210 3,140 3,220 3,103 3,129 click here for the excel data file (a) construct a 95% confidence interval for the true mean number of steps dave takes on his run. (round your answers to 2 decimal places.) the 95% confidence interval is from to . (b) what sample size would be needed to obtain an error of ± 20 steps with 95% confidence? (enter your answer as a whole number (no decimals). use a z-value taken to 3 decimal places in your calculations.) sample size
Answers: 3
Mathematics, 21.06.2019 19:30, Pen350
Joel wants to buy a new tablet computer fram a store having a 20% off sale on all tablets. the tablet he wants has an original cost of $190. he also wants to make sure he has enough money to pay the 5% sales tax. part one joel uses the incorect expression 0.95(190)(0.8) to calculate that the tablet will cost him a total of $144.40. describe his error and write the correct expression part two how much will joel pay for the tablet show your work if you answer this question correctly you will receive a prize of 99 points good luck
Answers: 2
Mathematics, 21.06.2019 20:00, annieleblanc2004
Which type of graph would allow us to quickly see how many students between 100 and 200 students were treated?
Answers: 1
Mathematics, 21.06.2019 22:00, zakiyahjones0890
If rs 900 amounts to rs 1044 in 4 years, what sum will amount to 1368 in 3 1/2 years at the same rate
Answers: 3
Dave the jogger runs the same route every day (about 2.2 miles). on 18 consecutive days, he recorded...
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