Assume the random variable x is normally distributed with mean u = 81 and standard deviation o = 5. Find the indicated probability.P(65 In a survey of 3438 adults, 1493 say they have started paying bills online in the last year.Construct a 99% confidence interval for the population proportion. Interpret the results.A 99% confidence interval for the population proportion is(Round to three decimal places as needed.)Interpret your results. Choose the correct answer below.O A. With 99% confidence, it can be said that the population proportion of adults who say they have started paying bills online in the last year is between theendpoints of the given confidence interval.O B. The endpoints of the given confidence interval show that adults pay bills online 99% of the time.O C. With 99% confidence, it can be said that the sample proportion of adults who say they have started paying bills online in the last year is between the endpointsof the given confidence interval.

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Assume the random variable x is normally distributed with mean u= 81 and standard deviation o = 5. Find the indicated probability. P(65

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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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

Assume the random variable x is normally distributed with mean u = 81 and standard deviation o = 5. Find the indicated probability.
P(65<x<79)
P(65<x<79) =
(Round to four decimal places as needed.)

In a survey of 3438 adults, 1493 say they have started paying bills online in the last year.
Construct a 99% confidence interval for the population proportion. Interpret the results.
A 99% confidence interval for the population proportion is
(Round to three decimal places as needed.)
Interpret your results. Choose the correct answer below.
O A. With 99% confidence, it can be said that the population proportion of adults who say they have started paying bills online in the last year is between the
endpoints of the given confidence interval.
O B. The endpoints of the given confidence interval show that adults pay bills online 99% of the time.
O C. With 99% confidence, it can be said that the sample proportion of adults who say they have started paying bills online in the last year is between the endpoints
of the given confidence interval.

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