e2learn.com/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou%=D976808&isprv3&drc%3D0&qi=8109618cf. Questions Angela Allen: Attempt 1 The stem-and-leaf plot below shows the marathon training times (in minutes) for a random sample of 30 female runners. Training Times (in minutes) of Female Runners 17 899 Key: 17|8 = 178 %3D 10 0 0 1 2 3 19 0 0 0 1 3 4 5 5 6 6 18 46679 20 10 1 2 3 Provided the data from the stem-and-leaf plot above answer the following questions. a) Use the sample to find a point estimate (round to 2 DP) for the mean training time of the female runners. b) Find the sample standard deviation (round to 2 DP) of the training time for the female runners. c) Use the sample to construct a 95% confidence interval for the population mean training time of the female runners. d) Interpret the result of Exercise 3. Write your answer in a complete sentence (Capitalization, Punctuation, etc) e) A trainer wants to estimate the population mean training time for female runners within 2 minutes. Determine the minimum sample size required to construct a 99% confidence interval for the population mean training time of female runners. Assume the population standard deviation is 8.4 minutes. Write your answer in a complete sentence (Capitalization, Punctuation, etc) hp ins prt f10 f12

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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The stem-and-leaf plot below shows the marathon training times (in minutes) for a random sample of 30 female runners.

Provided the data from the stem-and-leaf plot above answer the following questions.

1.Use the sample to find a point estimate (round to 2 DP) for the mean training time of the female runners.

2.Find the sample standard deviation (round to 2 DP) of the training time for the female runners.

3.Use the sample to construct a 95% confidence interval for the population mean training time of the female runners.

4.Interpret the result of Exercise 3. Write in complete sentences.

5. A trainer wants to estimate the population mean training time for female runners within 2 minutes. Determine the minimum sample size required to construct a 99% confidence interval for the population mean training time of female runners. Assume the population standard deviation is 8.4 minutes.

e2learn.com/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou%=D976808&isprv3&drc%3D0&qi=8109618cf.
Questions
Angela Allen: Attempt 1
The stem-and-leaf plot below shows the marathon training times (in minutes) for a random sample of 30 female
runners.
Training Times (in minutes)
of Female Runners
17
899
Key: 17|8 = 178
%3D
10 0 0 1 2 3
19 0 0 0 1 3 4 5 5 6 6
18
46679
20
10 1 2 3
Provided the data from the stem-and-leaf plot above answer the following questions.
a) Use the sample to find a point estimate (round to 2 DP) for the mean training time of the female runners.
b) Find the sample standard deviation (round to 2 DP) of the training time for the female runners.
c) Use the sample to construct a 95% confidence interval for the population mean training time of the female
runners.
d) Interpret the result of Exercise 3. Write your answer in a complete sentence (Capitalization, Punctuation, etc)
e) A trainer wants to estimate the population mean training time for female runners within 2 minutes. Determine
the minimum sample size required to construct a 99% confidence interval for the population mean training time of
female runners. Assume the population standard deviation is 8.4 minutes. Write your answer in a complete
sentence (Capitalization, Punctuation, etc)
hp
ins
prt
f10
f12

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