Website An investment company is planning to upgrade the mobile access to their website, but they'd like to know the pro- portion of their customers who access it from their smartphones. They draw a random sample of 200 from customers who re- cently logged in and check their IP address. Suppose that the true proportion of smartphone users is 36%. a) What would you expect the shape of the sampling distribution for the sample proportion to be? b) What would be the mean of this sampling distribution? c) What would be the standard deviation of the sampling distribution?

Website An investment company is planning to upgrade the mobile access to their website, but they'd like to know the pro- portion of their customers who access it from their smartphones. They draw a random sample of 200 from customers who re- cently logged in and check their IP address. Suppose that the true proportion of smartphone users is 36%. a) What would you expect the shape of the sampling distribution for the sample proportion to be? b) What would be the mean of this sampling distribution? c) What would be the standard deviation of the sampling distribution?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

SECTION 13.1
1. Website An investment company is planning to upgrade the
mobile access to their website, but they'd like to know the pro-
portion of their customers who access it from their smartphones.
They draw a random sample of 200 from customers who re-
cently logged in and check their IP address. Suppose that the
true proportion of smartphone users is 36%.
a) What would you expect the shape of the sampling distribution
for the sample proportion to be?
b) What would be the mean of this sampling distribution?
c) What would be the standard deviation of the sampling
distribution?

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