Mathematics, 19.10.2019 00:30 jessikamacadlo8948
An investment website can tell what devices are used to access their site. the site managers wonder whether they should enhance the facilities for trading via smartphones so they want to estimate the proportion of users who access the site that way. they draw a random sample of
131
investors from their customers. suppose that the true proportion of smartphone users is
26
%.
complete parts a) through c) below.
a) what would the managers expect the shape of the sampling distribution for the sample proportion to be?
skewed to the left
unimodal and symmetric
skewed to the right
nonsymmetric
b) what would be the mean of this sampling distribution?
(round to two decimal places as needed.)
c) what would be the standard deviation of the samplingdistribution?
(round to three decimal places as needed.)
Answers: 3
Mathematics, 21.06.2019 16:30, Hfruit
You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:
Answers: 1
Mathematics, 21.06.2019 16:40, jessicap7pg75
If 24 people have the flu out of 360 people, how many would have the flu out of 900. choose many ways you could use proportion that david would use to solve this problem
Answers: 1
Mathematics, 21.06.2019 20:30, corbeansbrain
Someone answer asap for ! michele pushes a box d meters across a floor. she uses a force f, in newtons, to push the box. she pushes the box for t seconds. the formula p = fd/t calculates the power, p, in watts, that it takes for michele to complete the task. solve the formula for d.
Answers: 2
An investment website can tell what devices are used to access their site. the site managers wonder...
Computers and Technology, 12.02.2021 19:40
Mathematics, 12.02.2021 19:40
Mathematics, 12.02.2021 19:40