Question about Texas Instruments TI-30XA Calculator

Here are the shopping times in minutes for a sample of 6 shoppers at a shoe store:

34,39,32,36,30,33

find the standard deviation of this sample, please show steps on how to figure out standard deviation step.

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Posted on Jan 02, 2017

Manual is available in PDF format from here

http://docslide.us/download/link/dca-operators-guide

http://docslide.us/download/document/?id=%2FJKJQj2KkZIjS9Tn4Jm5CAbRibVv%2BGl%2BT9wi7I03ZyGSjZf8c1bXQnPy2%2FSc3BFIu8t3mvccp4VXj23OQyX8pQ%3D%3D

DCA Vantage Operator's Guide 109

Troubleshooting

E22 - Optical

reading is out

of range

A Sample or Reference

channel reading taken

during an Air

measurement is too

high.

1. Discard the sample.

2. Run an optical test.

3. If you are unable to run an

optical test, contact your local

technical support provider.

E23 -

Excessive

noise on the

Sample

channel

The standard deviation

of the 16 readings at the

Sample channel for Dark

or Air reading is too

large.

1. Discard the sample.

2. Run an optical test.

3. If you are unable to run an

optical test, contact your local

technical support provider.

E24 -

Excessive

noise on the

Reference

channel

The standard deviation

of the 16 readings at the

Reference channel for

Dark, Air or Sample

reading is too large.

1. Discard the sample.

2. Run an optical test.

3. If you are unable to run an

optical test, contact your local

technical support provider.

E26 -

Excessive

noise in sample

reading

The standard deviation

of the 16 readings at the

Sample channel during a

reading taken is too

large in Sample read

position.

1. Discard the sample.

2. Run an optical test.

3. If you are unable to run an

optical test, contact your local

technical support provider.

E27 -

Excessive

Lamp Drift

The change in mean

signal between

successive Air readings

is too large at either the

Sample channel or the

Reference channel.

1. Discard the sample.

2. Run an optical test.

3. If you are unable to run an

optical test, contact your local

technical support provider.

E30 - Thermal

control system

error - low

The temperature

measured by one of the

cartridge holder

thermistors is ?2?C.

1. Discard the sample.

2. Restart the system.

3. If you are unable to perform a

successful restart, contact

your local technical support

provider.

E

http://docslide.us/download/link/dca-operators-guide

http://docslide.us/download/document/?id=%2FJKJQj2KkZIjS9Tn4Jm5CAbRibVv%2BGl%2BT9wi7I03ZyGSjZf8c1bXQnPy2%2FSc3BFIu8t3mvccp4VXj23OQyX8pQ%3D%3D

DCA Vantage Operator's Guide 109

Troubleshooting

E22 - Optical

reading is out

of range

A Sample or Reference

channel reading taken

during an Air

measurement is too

high.

1. Discard the sample.

2. Run an optical test.

3. If you are unable to run an

optical test, contact your local

technical support provider.

E23 -

Excessive

noise on the

Sample

channel

The standard deviation

of the 16 readings at the

Sample channel for Dark

or Air reading is too

large.

1. Discard the sample.

2. Run an optical test.

3. If you are unable to run an

optical test, contact your local

technical support provider.

E24 -

Excessive

noise on the

Reference

channel

The standard deviation

of the 16 readings at the

Reference channel for

Dark, Air or Sample

reading is too large.

1. Discard the sample.

2. Run an optical test.

3. If you are unable to run an

optical test, contact your local

technical support provider.

E26 -

Excessive

noise in sample

reading

The standard deviation

of the 16 readings at the

Sample channel during a

reading taken is too

large in Sample read

position.

1. Discard the sample.

2. Run an optical test.

3. If you are unable to run an

optical test, contact your local

technical support provider.

E27 -

Excessive

Lamp Drift

The change in mean

signal between

successive Air readings

is too large at either the

Sample channel or the

Reference channel.

1. Discard the sample.

2. Run an optical test.

3. If you are unable to run an

optical test, contact your local

technical support provider.

E30 - Thermal

control system

error - low

The temperature

measured by one of the

cartridge holder

thermistors is ?2?C.

1. Discard the sample.

2. Restart the system.

3. If you are unable to perform a

successful restart, contact

your local technical support

provider.

E

Sep 21, 2015 | Siemens Dishwashers

About 5.23. If this is homework, be sure to show your work.

Jun 25, 2014 | Office Equipment & Supplies

Population size:4

Mean (?): 23.45

Standard deviation (?): 4.5986411036305

Mean (?): 23.45

Standard deviation (?): 4.5986411036305

Mar 07, 2014 | Office Equipment & Supplies

For a sample this smaller size there are two std deviations. Sample std deviation s(n-1) = 0.550, and population std deviation s(n) = 0.541

Dec 22, 2013 | Audio Players & Recorders

Count the number of items in the sample whose statistics you're calculating. For example, if you're calculating the mean and standard deviation of seven items then the sample size is seven.

Apr 18, 2012 | Casio FX-9750GPlus Calculator

The TI-30XA does not have to be switched to a statistics mode, the operations are available all the time. The choice of operations are somewhat limited; the calculator offers statistics functions for one dimensional data sets only (no linear interpolation of (x,y) value pairs, for example):

Example: calculate the average and standard deviation of the set { 3, 4, 5, 5, 5, 5, 6 }.

- [2nd] [CSR] - erase statistics data
- [] - add a number to the sample set
- [2nd] [] - remove a number from the sample set
- [2nd] [FRQ] - multiple entry of the same sample value
- [2nd] [n] - sample set size
- [2nd] [] - sum of all sample elements
- [2nd] [] - sum of the squares of all sample elements
- [2nd] [] - average of the sample set
- [2nd] [] - standard deviation (sample set is a complete set)
- [2nd] [] - standard deviation (sample set is a subset of a larger set)

Example: calculate the average and standard deviation of the set { 3, 4, 5, 5, 5, 5, 6 }.

- [2nd] [CSR] - erase stat memory
- 3 [] 4 [] 5 [2nd] [FRQ] 4 [] 6 [] - enter the data, note the use of [2nd] [FRQ] to enter the four occurrences of "5". Entering 5 [] four times would have done the same.
- [2nd] [] - display the average of the set, (4.714...)
- [2nd] [] - display the standard deviation of the set (0.8806...)

Jan 25, 2011 | Texas Instruments TI-30XA Calculator

Example: Enter the following x variables, and determine the sample and population standard deviations.

**x** = {1,2,3}

- Press [DATA] and begin to enter the data as indicated into the L1, L2 or L3 lists. To input a data point, type the value and press [ENTER]. Press the down arrow key to move on to the next data point.
- Press [2nd], [STAT], and then choose 1-VAR.
- For the "DATA" option, choose the listname the data is stored in (L1, L2 or L3). For the "FRQ" option, choose "ONE" since this data does not include a frequency list.
- Arrow down to "CALC" and press [ENTER].
*Answers should be as follows:*

3:Sx (Sample Standard Deviation) = 1

4:sx (Population Standard Deviation) = 0.816497 - Press [2nd] [MODE] to exit STAT mode.

Oct 20, 2010 | Texas Instruments TI30XS Scientific...

Yes. The sample standard deviation is 2nd [sigma x n-1] and the population standard deviation is 2nd [sigma x n].

Apr 02, 2010 | Texas Instruments TI-30XA Calculator

Hello,

If you want to do statistics with this calculator you press [MODE][3:STAT]. You have then 8 options 1:1-var, 2:A+BX, etc.

For one variable statistics you press 1. Enter the values for the X variable in the template. Once finished you press [SHIFT][1](STAT) then select the value you want ( n, x bar , and the standard deviations (X sigma n) and (X sigma n-1).

Hope it helps.

If you want to do statistics with this calculator you press [MODE][3:STAT]. You have then 8 options 1:1-var, 2:A+BX, etc.

For one variable statistics you press 1. Enter the values for the X variable in the template. Once finished you press [SHIFT][1](STAT) then select the value you want ( n, x bar , and the standard deviations (X sigma n) and (X sigma n-1).

Hope it helps.

Jul 30, 2009 | Casio fx-300ES Calculator

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