Mathematics, 22.11.2019 17:31 shiny9362
Atelevision sports commentator wants to estimate the proportion of citizens who "follow professional football." complete parts (a) through (c). (a) what sample size should be obtained if he wants to be within 4 percentage points with 94% confidence if he uses an estimate of 52% obtained from a poll? the sample size is nothing. (round up to the nearest integer.) (b) what sample size should be obtained if he wants to be within 4 percentage points with 94% confidence if he does not use any prior estimates? the sample size is nothing. (round up to the nearest integer.) (c) why are the results from parts (a) and (b) so close? a. the results are close because 0.52 left parenthesis 1 minus 0.52 right parenthesis equals0.2496 is very close to 0.25. b. the results are close because the confidence 94% is close to 100%. c. the results are close because the margin of error 4% is less than 5%.
Answers: 3
Mathematics, 21.06.2019 13:00
In a box lenght 1m breadth 60 cm and height 40 cm small rectangular packets of dimension 5 cm into 8 cm into 10 cm are packed. how many such small packets can be packed in the big box?
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Mathematics, 21.06.2019 14:00
Roger and natalie travel in similar cars. roger's car drives the two miles to school in 7.5 minutes. natalie drives the same distance in the opposite direction but in only 6.5 minutes. what is true of their velocities?
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Mathematics, 21.06.2019 20:00
Describe a situation that you could represent with the inequality x< 17
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Mathematics, 21.06.2019 22:10
Atype of plant is introduced into an ecosystem and quickly begins to take over. a scientist counts the number of plants after mmonths and develops the equation p(m)= 19.3(1.089)^m to model the situation. most recently, the scientist counted 138 plants.assuming there are no limiting factors to the growth of the plants, about how many months have passed since the plants werefirst introduced? a)o 6.1b)0.6.6c)10 72d)o 23.1
Answers: 3
Atelevision sports commentator wants to estimate the proportion of citizens who "follow professional...
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