Plzz explain and solve only a and c question. Q1-a) The area under the curve of a chi square distribution (19) between 0 and X, is 0.3,then X is equal to:O 10.117c)O 15.352The standard deviation of a cigarette's nicotine content is 0. 3 mg. How large samplemust be selected if we want to be 95% confident of getting an interval that contains theO 15.119true mean with a maximum error of 0.03mg:O 9.926At least 217At least 139b)The monthly sales of cars (in L.L) in a show rooms for a company are assumed to followa normal distribution. A sample of monthly sales has been observed, and given as (inMillions of L.L):At least 216125 145 88 150 115 183 97 104 125O At least 385The confidence interval for the mean sales in all salesrooms, at a 99% level is:(87.37, 157.96)O (97.19, 142.15)O (92.51, 159.05)O (96.63, 144.92)

Name: Plzz explain and solve only a and c question. Q1-a) The area under the
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Description: Plzz explain and solve only a and c question. Q1-a) The area under the curve of a chi square distribution (19) between 0 and X, is 0.3,then X is equal to:O 10.117c)O 15.352The standard deviation of a cigarette's nicotine content is 0. 3 mg. How large

Problem is given based on chi-square. The degrees of freedom of Chi-square is 19 here. For part b,…

Math

Statistics

21-a) The area under the curve of a chi square distribution (19) between 0 and X is 0.3, then X is equal to: 10.117 c) The standard deviation of a cigarette's nicotine content is 0. 3 mg. How large sample must be selected if we want to be 95% confident of getting an interval that contains the 15.352 true mean with a maximum error of 0.03mg: 15.119 9.926 At least 217 At least 139 b) The monthly sales of cars (in L.L) in a show rooms for a company are assumed to follow a normal distribution. A sample of monthly sales has been observed, and given as (in Millions of L.L): At least 216 125 145 88 150 115 183 97 104 125 The confidence interval for the mean sales in all salesrooms, at a 99% level is: At least 385 (87.37, 157.96) O (97.19, 142.15) (92.51, 159.05) O (96.63, 144.92 )

21-a) The area under the curve of a chi square distribution (19) between 0 and X is 0.3, then X is equal to: 10.117 c) The standard deviation of a cigarette's nicotine content is 0. 3 mg. How large sample must be selected if we want to be 95% confident of getting an interval that contains the 15.352 true mean with a maximum error of 0.03mg: 15.119 9.926 At least 217 At least 139 b) The monthly sales of cars (in L.L) in a show rooms for a company are assumed to follow a normal distribution. A sample of monthly sales has been observed, and given as (in Millions of L.L): At least 216 125 145 88 150 115 183 97 104 125 The confidence interval for the mean sales in all salesrooms, at a 99% level is: At least 385 (87.37, 157.96) O (97.19, 142.15) (92.51, 159.05) O (96.63, 144.92 )

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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Profit and Loss

The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.

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Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.

Topic Video

Question

Plzz explain and solve only a and c question.

Q1-a) The area under the curve of a chi square distribution (19) between 0 and X, is 0.3,
then X is equal to:
O 10.117
c)
O 15.352
The standard deviation of a cigarette's nicotine content is 0. 3 mg. How large sample
must be selected if we want to be 95% confident of getting an interval that contains the
O 15.119
true mean with a maximum error of 0.03mg:
O 9.926
At least 217
At least 139
b)
The monthly sales of cars (in L.L) in a show rooms for a company are assumed to follow
a normal distribution. A sample of monthly sales has been observed, and given as (in
Millions of L.L):
At least 216
125 145 88 150 115 183 97 104 125
O At least 385
The confidence interval for the mean sales in all salesrooms, at a 99% level is:
(87.37, 157.96)
O (97.19, 142.15)
O (92.51, 159.05)
O (96.63, 144.92)

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