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You use Excel's linear regression functions to find a linear equation that best describes a data set.

Excel uses the sum of least squares method to find the straight line of best fit. People often

try to predict future amounts by assuming linear growth and extending the line forward in

time. For example, if you have a series of sales data for 9 months and want to predict the

sales in the 10th month, you can use Excel's linear regression functions to find the slope and

y-intercept (the point on the y-axis where the line crosses) of the line that best fits the data.

Some Background Info on Linear Regression

To use the linear regression functions, it helps to remember the equation for a line:

y=mx+b

where y is the dependent variable, m the slope, x the independent variable, and b the

y-intercept. If there are multiple ranges of x values, the equation looks like this:

y=m1 x1+m2x2+.mnxn+b

NOTE To visualize and experiment with linear regression, visit the interactive web page at

[http://www.math.csusb.edu/faculty/stanton/m262/regress/regress.html]. Click the

graph area to add data points (x,y) to the graph. The applet draws the straight line

that best fits the points you add, adjusting the line for the new data points you add.

Using the FORECAST Function

The FORECAST function predicts a future y-value for the x-value you specify using existing

x and y values. The FORECAST function uses the following syntax:

=FORECAST(x, known ys, known xs)

where x is the x-value for which you want to predict a y-value.

Using the INTERCEPT Function

If you have existing x and y values, Excel can find the straight line that best fits the data and then calculate the point at which the line intersects the y-axis, in other words, the value of b in the "y=mx+b" equation. The y-intercept is useful when you want to know the value of the dependent variable when the independent variable equals 0.

NOTE: The INTERCEPT function returns the same value as the FORECAST function if you enter 0 for x in the FORECAST function.

The INTERCEPT function uses the following syntax:

=INTERCEPT (known ys, known xs)

Using the LINEST Function

The LINEST function returns the value of m and b given at least one set of known ys and known xs. The LINEST function has the following syntax:

=LINEST (known ys, known xs, constant, statistics)

where known ys is the array of y values you already know, known xs is the array of x values you may already know. If you leave out the known xs, they are assumed to be 1, 2, 3,...n. If constant is set to FALSE, b is assumed to be 0. If statistics is set to TRUE, the LINEST function also returns the standard error for each data point.

NOTE: If the known ys are in a single column or row, then Excel considers each column of

known xs to be a separate variable.

NOTE: The array known xs can include multiple sets of variables. If you use only one set, then known ys and known xs can be ranges of any shape, as long as they have equal dimensions. If you use more than one variable, then the known ys array must be either a single column or a single row. If you don't enter known xs, Excel assumes this array is the same size as the known ys array.

Using the SLOPE Function

Use the SLOPE function to find the slope (m) of the linear regression line from the known x and known y data sets. The slope is the change in y over the change in x for any two points on the line. The SLOPE function in Excel uses the following syntax:

=SLOPE (known ys, known xs)

A positive (upwards) slope means that the independent variable (such as the number of salespeople) has a positive effect on a dependent variable (such as sales). A negative (downwards) slope means that the independent variable has a negative effect on the dependent variable. The steeper the slope, the more effect the independent variable has on the dependent variable.

Using the STEYX Function

Use the STEYX function to find the standard error of the predicted y-value for each individual x in the regression. The STEYX function uses the following syntax:

=STEYX (known ys, known xs)

Using the TREND Function

Use the TREND function to find values along a linear trend. Specify an array of new xs and the TREND function uses the method of least squares to fit a straight line to the known x and y data sets and return the y-values along the line for the new array. If constant is set to FALSE, the "b" in the y=mx+b equation is set to zero. The TREND function uses the following syntax:

=TREND (known ys, known xs, new xs, constant)

Stephen L. Nelson, CPA wrote the MBA's Guide to Microsoft Excel, from which this short article is adapted. Nelson also writes and edits downloadable do-it-yourself small business incorporation kits that businesses and investors can use for setting up a Michigan S Corporation or a Minnesota S Corporation

Top 3 Tips for Choosing an Appointment Setting Telemarketing Company

Are you looking for a steady flow of appointments with prospects?

For many companies considering using telemarketing, appointment setting is main objective. I’ve lost count of the number of times I’ve spoken with a client and they tell me “I just need to get in front of them…”

Indeed, if you have a complex or high-value proposition, such as software or consulting services, getting that initial appointment is essential.

So, if you are considering using an appointment setting telemarketing company, what are the top three things you need to know?

Of course, there are many telemarketing companies providing Appointment Setting Services, so understanding which telemarketing company is right for your business is the key to success of any appointment setting campaign.

As an owner of an appointment setting telemarketing company, and having run hundreds of telemarketing & appointment setting campaigns over my career, I’ve learnt to identify the campaigns that work and the ones that don’t.

So, here’s my top three tips for choosing the right appointment setting telemarketing company for your business.

1) Do they have the right sector experience?

2) Can they be credible at the right level?

3) Are they used to setting the right volume of appointments?

These are all critical areas in which to evaluate any prospective appointment setting telemarketing company; let’s look at them in turn:

1) The right sector

How important is it that your appointment setting telemarketing company has previous experience of your market. Well, from our experience, it’s a considerable factor in the success of any appointment setting telemarketing campaign.

Sector experience brings a level if understanding, often a subtle one, that helps ensure success. Simply having working in a particular sector previously means that your appointment setting telemarketing company will be understand all the nuances of the market and companies they re calling into. Small aspects such as internal terms, job titles, jargon, organisational structures vary so much from sector to sector that it’s very difficult to teach.

Believe me, this does make a difference. Thing about the last time you were called by an appointment setting telemarketing reading a canned script. As soon as you asked a question and they had no idea what you were talking about, what do you think about the prospects of actually meeting the company?

2) The right level

Again, this is a critical, but subtle thing that you should always look at when considering appointment setting companies. If you’re trying to get a meeting with a senior-level decision maker, and let’s be honest, that’s all decision makers, what will they think if you’ve got an 18-year old calling them?

Wherever possible, seek to match the appointment setting telemarketing consultant with the target prospect. For example, in my appointment setting telemarketing company, we only work with senior, experienced telemarketing consultants for appointment setting campaigns.

Why? Because we set appointments with senior decision makers. Our people have worked in senior management roles; they’re credible when it comes to pitching a departmental head or CEO. Appointment setting requires your telemarketing company to establish credibility within seconds. This is achieved by more than a script – it’s achieved by presence.

3) The right volume

We generally work with Directors of small companies who want us to get meetings with very senior decision makers in medium to large companies. Why? Because as an appointment setting telemarketing company, we specialise in high-quality and low-volume appointments.

That’s right; we’re not interested in setting 3 appointments per day for our clients. If you’re looking to keep a team of hungry salespeople busy with 15 meetings per week each, then we’re not the type of appointment setting telemarketing company for you.

Equally, if you’ve got a high-value proposition, and you’re also running your own business, then you probably want an appointment setting telemarketing company that only send you out on well qualified, serious meetings. For a start, you probably couldn’t afford to spend more than two days a week out on sales appointments.

Getting the match right between the volume of appointments you need and then amount that your appointment setting telemarketing company is geared to deliver is important. If you only want a few and they’re a call centre wanting to keep three agents making 100 dials a day, guess what will happen?

So, in summary, choosing the right appointment setting telemarketing company is all about fit. Do they fit your sector, the level of prospect they are calling and, finally, do they fit with your expectations of the number of appointments you want.

Get all these three right and you can expect a profitable and successful appointment setting telemarketing campaign.

About the Author

David Regler is Managing Director of Maine Associates Ltd, a sales lead generation telemarketing agency specialising in telemarketing appointment setting services.

How do I set it up to where a user is limited to logging on to one computer and no other in Active Directory?

I am trying to set up students in a school with their own username and password, but the teacher wants them assigned to individual computers and not be able to log in to another one, just their certain one. Can this be done? If so, is it through Active Directory or on the individual computer? If anyone knows, please let me know......Thanks a lot.

Hi!

Its absolutely possible. You can do it via Computer Management on each system, but by far the most versatile way is using Active Directory Users and Computers. To do it, try the following.

Open Active Directory users and Computers (ADUC) on the domain controller, or from your PC if you have the adminpak installed.

Find the account you want to restrict. Right click it and go to Properties

Go to the tab called Account.

Theres a button there called Log On To... Click it

It will open up a window titled Logon Workstations. Choose the second option marked 'The following computers' and Add in the names of the computers you want them to access. hit OK once you are done.

For good measure you may want to also add in Logon hours (the button to the left of it). its not required but always useful!.

Hope this helps!

If it doesn't work, feel free to give me a shout.

Cheers

Obesity set to be Australia's leading cause of death
Obesity is set to overtake smoking as the leading cause of premature death and illness in Australia, and experts are calling on government authorities to take the same tough stand on the weight crisis as it did on tobacco.

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