The stem-and-leaf plot below shows the marathon training times (in minutes) fora random sample of 30 female runners. Training Times (in minutes) of Female Runners 8 99 00 0 0 1 2 3 4 6 6 79 1 0 0 1 3 4 5 5 6 6 00 1 2 3 17 Key: 17|8 = 178 18 19 20 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.

The stem-and-leaf plot below shows the marathon training times (in minutes) fora random sample of 30 female runners. Training Times (in minutes) of Female Runners 8 99 00 0 0 1 2 3 4 6 6 79 1 0 0 1 3 4 5 5 6 6 00 1 2 3 17 Key: 17|8 = 178 18 19 20 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.

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Description: The stem-and-leaf plot below shows the marathon training times (in minutes) fora random sample of 30 femalerunners.Training Times (in minutes)of Female Runners8 9900 0 0 1 2 3 4 6 6 791 0 0 1 3 4 5 5 6 600 1 2 317Key: 17|8 = 178181920Provided the da

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

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Question

The stem-and-leaf plot below shows the marathon training times (in minutes) fora random sample of 30 female
runners.
Training Times (in minutes)
of Female Runners
8 99
00 0 0 1 2 3 4 6 6 79
1 0 0 1 3 4 5 5 6 6
00 1 2 3
17
Key: 17|8 = 178
18
19
20
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.

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