Mathematics, 30.03.2021 01:00, erikloza12pdidtx
A biologist studying trees constructed the confidence interval (0.14, 0.26) to estimate the proportion of trees in a large forest that are dead but still standing. If the sample size used to construct the interval was 50 trees, how many of them were dead but still standing?
a. Anywhere from 7 to 13
b. 20
c. 3
d. 10
e. 6
Answers: 1
Mathematics, 21.06.2019 15:30, Leggett3146
On the first of each month, shelly runs a 5k race. she keeps track of her times to track her progress. her time in minutes is recorded in the table: jan 40.55 july 35.38 feb 41.51 aug 37.48 mar 42.01 sept 40.87 apr 38.76 oct 48.32 may 36.32 nov 41.59 june 34.28 dec 42.71 determine the difference between the mean of the data, including the outlier and excluding the outlier. round to the hundredths place. 39.98 39.22 0.76 1.21
Answers: 1
Mathematics, 21.06.2019 18:30, leobaut6145
Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.
Answers: 1
Mathematics, 21.06.2019 18:30, mauralawson
Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =
Answers: 1
Mathematics, 21.06.2019 18:30, lionscoachjose
Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.
Answers: 2
A biologist studying trees constructed the confidence interval (0.14, 0.26) to estimate the proporti...
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