112 103 84 132 93 151 139 97 116 120 A USE SALT (a) Let , denote the average gas usage during January by all houses in this area. Calculate a point estimate of u. therms (b) Suppose that 10,000 houses in this area use natural gas for heating. Let r denote the total amount of gas used by all of these houses during January. Estimate r using the given data. therms What statistic did you use to calculate your estimate? sample standard deviation O sample range O sample variance O sample mean (c) Use the given data to estimate p, the proportion of all houses that used at least 100 therms.

112 103 84 132 93 151 139 97 116 120 A USE SALT (a) Let , denote the average gas usage during January by all houses in this area. Calculate a point estimate of u. therms (b) Suppose that 10,000 houses in this area use natural gas for heating. Let r denote the total amount of gas used by all of these houses during January. Estimate r using the given data. therms What statistic did you use to calculate your estimate? sample standard deviation O sample range O sample variance O sample mean (c) Use the given data to estimate p, the proportion of all houses that used at least 100 therms.

Name: A random sample of 10 houses heated with natural gas in a particular
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Description: A random sample of 10 houses heated with natural gas in a particular area is selected, and the amount of gas (in therms) used during the month of January is determined for each house. The resulting observations are as follows.112 103 84 132 93 151 1

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

A random sample of 10 houses heated with natural gas in a particular area is selected, and the amount of gas (in therms) used during the month of January is determined for each house. The resulting observations are as follows.
112 103 84 132 93 151 139 97 116 120
In USE SALT
(a) Let u, denote the average gas usage during January by alI houses in this area. Calculate a point estimate of u,.
therms
(b) Suppose that 10,000 houses in this area use natural gas for heating. Let z denote the total amount of gas used by all of these houses during January. Estimate r using the given data.
therms
What statistic did you use to calculate your estimate?
O sample standard deviation
O sample range
O sample variance
O sample mean
(c) Use the given data to estimate p, the proportion of all houses that used at least 100 therms.
(d) Give a point estimate of the population median usage based on the given sample.
therms
Which statistic did you use?
O population mean
O sample median
O population variance
O sample standard deviation

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