Suppose that 14 children, who were learning to ride two-wheel bikes, were surveyed to determine how long they had to use training wheels. It was revealed that they used them an average of ten months with a sample standard deviation of five months. Assume that the underlying population distribution is normal. O Part (a) (i) Enter an exact number as an integer, fraction, or decimal. x = (ii) Enter an exact number as an integer, fraction, or decimal. Sy = (ii) Enter an exact number as an integer, fraction, or decimal. n= (iv) Enter an exact number as an integer, fraction, or decimal. n-1 = O Part (b) Define the random variable X in words. O The mean amount of time a single child uses training wheels.
Suppose that 14 children, who were learning to ride two-wheel bikes, were surveyed to determine how long they had to use training wheels. It was revealed that they used them an average of ten months with a sample standard deviation of five months. Assume that the underlying population distribution is normal. O Part (a) (i) Enter an exact number as an integer, fraction, or decimal. x = (ii) Enter an exact number as an integer, fraction, or decimal. Sy = (ii) Enter an exact number as an integer, fraction, or decimal. n= (iv) Enter an exact number as an integer, fraction, or decimal. n-1 = O Part (b) Define the random variable X in words. O The mean amount of time a single child uses training wheels.
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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![Suppose that 14 children, who were learning to ride two-wheel bikes, were surveyed to determine how long they had to use training wheels. It was revealed that they used them an average of ten months with a sample standard deviation of five months. Assume that the underlying population distribution is normal.
### Part (a)
(i) Enter an exact number as an integer, fraction, or decimal.
\( \overline{x} = \_
(ii) Enter an exact number as an integer, fraction, or decimal.
\( s_{x} = \_
(iii) Enter an exact number as an integer, fraction, or decimal.
\( n = \_
(iv) Enter an exact number as an integer, fraction, or decimal.
\( n - 1 = \_
### Part (b)
Define the random variable \( X \) in words.
- [ ] The mean amount of time a single child uses training wheels.
- [ ] The amount of time a single child uses training wheels.
- [x] The mean length of time for training wheels usage from a sample of 14 children.
- [ ] The population mean amount of time for training wheels usage for children.
### Part (c)
Define the random variable \( \overline{X} \) in words.
- [ ] The mean amount of time a single child uses training wheels.
- [ ] The amount of time a single child uses training wheels.
- [x] The mean length of time for training wheels usage from a sample of 14 children.
- [ ] The population mean amount of time for training wheels usage for children.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F692b4a3d-b328-4d6d-8f5c-2ba3aed54605%2F3bd07520-d5d3-4ad0-abc0-8c40a78744b8%2F58v95vc_processed.png&w=3840&q=75)
Transcribed Image Text:Suppose that 14 children, who were learning to ride two-wheel bikes, were surveyed to determine how long they had to use training wheels. It was revealed that they used them an average of ten months with a sample standard deviation of five months. Assume that the underlying population distribution is normal.
### Part (a)
(i) Enter an exact number as an integer, fraction, or decimal.
\( \overline{x} = \_
(ii) Enter an exact number as an integer, fraction, or decimal.
\( s_{x} = \_
(iii) Enter an exact number as an integer, fraction, or decimal.
\( n = \_
(iv) Enter an exact number as an integer, fraction, or decimal.
\( n - 1 = \_
### Part (b)
Define the random variable \( X \) in words.
- [ ] The mean amount of time a single child uses training wheels.
- [ ] The amount of time a single child uses training wheels.
- [x] The mean length of time for training wheels usage from a sample of 14 children.
- [ ] The population mean amount of time for training wheels usage for children.
### Part (c)
Define the random variable \( \overline{X} \) in words.
- [ ] The mean amount of time a single child uses training wheels.
- [ ] The amount of time a single child uses training wheels.
- [x] The mean length of time for training wheels usage from a sample of 14 children.
- [ ] The population mean amount of time for training wheels usage for children.
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