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1. ### Statistics help please!?

Your alternative Hypothesis is wrong...it should be mu not equal. 1) The test statistic is your sample statistic massaged into a z or t-score. 2) The critical value is the z or t-score that seperates the Critical...

1 Answers · Science & Mathematics · 16/03/2013

2. ### How many different class photographs are possible?

... 1&2, 2&3, 3&4, 5&6, 6&7, or 7&8. 1234...1234....1234....1234.... 1234....1234 ssxx...xssx....xxss....xxxx.... xxxx....xxxx xxxx...xxxx....xxxx....ssxx.... xssx....xxss...

4 Answers · Science & Mathematics · 17/11/2013

3. ### Trouble with "Linear Correlation Coefficient"?

1. For linear correlation coefficient, there is no dependent or independent variable. The equations are symmetric in X and Y. http://stattrek.com/statistics/correlation.aspx http://en.wikipedia.org/wiki/Correlation_and_dependence 2. If the arithmetic is...

1 Answers · Social Science · 15/07/2013

4. ### No one can solve this problem!! CAN YOU HELP ME?

...25)^2=.0625 add up the squares of each answer, this sum will be your SSxx value. For y-values (the numbers of products ...

2 Answers · Science & Mathematics · 08/06/2008

5. ### NO ONE CAN SEEM TO SOLVE: Linear Regression & Prediction Intervals?

...0 ... 1... etc x' is the value you pick to predict at and sum(xi-xbar)^2 = SSxx = sum(x^2)-nxbar^2 so if you wanted to create a 95% prediction interval with...

3 Answers · Science & Mathematics · 01/12/2006

6. ### Question about simple linear regression: How can I find the standard error or test statistic of the yintercept?

...y - Y_hat) ² = s 2. Σ(x) - [(Σx) ² / n ] = SSxx 3. Now: s / sqrt(SSxx) That is your standard...

1 Answers · Science & Mathematics · 29/03/2012

7. ### The number of banks in the United States has dropped about 30% since 1992. The following data are from a surv

... your professor the difference Anyway, r = SSxy/√(SSxx∙SSyy) You need the raw data to find this. The interpretation...

1 Answers · Science & Mathematics · 27/11/2007

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