Mathematics, 16.12.2019 22:31 Amyra2003
An educational psychologist wishes to know the mean number of words a third grader can read per minute. she wants to make an estimate at the 90% level of confidence. for a sample of 837 third graders, the mean words per minute read was 24.9. assume a population standard deviation of 5.1. construct the confidence interval for the mean number of words a third grader can read per minute. round your answers to one decimal place.
Answers: 1
Mathematics, 21.06.2019 16:00
Answer asap ! the shortest path from point a to point b goes through a pond. to avoid the pond, you must walk straight 34 meters along one edge of the pond, then take a 90 degree turn, and again walk straight 41 meters along another edge of the pond to reach point b. about how many meters would be saved if it were possible to walk through the pond? a. 11 m b. 20 m c. 30.45 m d. 21.73 m
Answers: 1
Mathematics, 21.06.2019 17:30
Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.
Answers: 2
Mathematics, 21.06.2019 18:30
Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?
Answers: 3
An educational psychologist wishes to know the mean number of words a third grader can read per minu...
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