Sentences with phrase «average standard deviation for»

The 5 - day average standard deviation for global AAM is 1.2 x1025 kg m2 s - 1 and for the global tendency is 1.4 x1019 kg m2 s - 2.

Not exact matches

The group's outperformance relative to the staples, down more than 11 percent this year, is currently near two standard deviations outside the average for the past 30 years.

Technically, we calculated z - scores for each state on each measure, which rescales each variable based on its average and standard deviation.

In the example at the top of the page, the simple average is 25 % and the standard deviation is 75 % (since the data points of +100 and -50 lie at a distance of 75 away from the simple average); in this case the estimate gives the exact answer of zero for the CAGR:

When the sentiment index is more than one standard deviation above (below) its historical average, monthly returns average -0.34 % (+1.18 %) for the value - weighted market and -0.41 % (2.75 %) percentage points for the equal - weighted market.

For each decile, we've subtracted the 1986 - 2016 average price / revenue ratio for that decile, dividing the result by the standard deviation of valuations in that decile (again from 1986 - 201For each decile, we've subtracted the 1986 - 2016 average price / revenue ratio for that decile, dividing the result by the standard deviation of valuations in that decile (again from 1986 - 201for that decile, dividing the result by the standard deviation of valuations in that decile (again from 1986 - 2016).

They normalize an interval return by subtracting the average return for all such intervals in the sample period and then dividing by their standard deviation.

When the S&P 500 was one standard deviation above its 200 - day, returns 60 days later were 2.35 % on average, compared to just 1.68 % for all other times.

For all asset classes (but focusing on currencies), they define bad market conditions as months when the excess return on the broad value - weighted U.S. stock market is less than 1.0 standard deviation below its sample period average.

Calculate the average of the standard deviations of daily returns over the last 60 trading days for the individual risky assets (all except Cash).

We focus on gross compound annual growth rate (CAGR), gross maximum drawdown (MaxDD) and rough gross annual Sharpe ratio (average annual return divided by standard deviation of annual returns) as key performance statistics for the Top 1, equally weighted (EW) Top 2 and EW Top 3 portfolios of monthly winners.

Secondly, if you are trying to prove the average points and standard deviation of that data for Alex Smith's offense in 2016, then maybe don't include the Nick Foles games in your data.

Third, 52 MPs receive a budget for accommodation in their constituency, which varies between # 10,400 and # 18,625 (averaging # 13,300, standard deviation of # 2,600) depending on the constituency band and number of dependants (an extra allowance of # 2,425 is paid for each dependant).

Fourth, 262 MPs receive the London accommodation budget, which has a standard rate of # 20,600 but can climb as high as # 32,725 for MPs with five dependants (average of # 22,000 and standard deviation of # 2,500).

Zonally averaged values of signal (red) and noise (black) are shown where signal is the mean difference in the variable between 1989 - 2039 and 1860 - 1910, and noise is the standard deviation of the variable for 1860 - 1910.

«The mean provides estimates for how many bushels the firm can expect on average, while the standard deviation captures the expected variability in the growth process,» said Bansal, who worked with Genaro J. Gutierrez, associate professor of information, risk, and operations management at the University of Texas at Austin, and John R. Keiser, of Dow AgroSciences.

b, Net TOA flux from CERES, ERA - Interim reanalysis and the one standard deviation about the 2001 — 2010 average of 15 CMIP3 models (grey bar) are anchored to an estimate of Earth's heating rate for July 2005 — June 2010.

Globally, extremely warm nights that used to come once in 20 years now occur every 10 years.12 And extremely hot summers, those more than three standard deviations above the historic average, are now observed in about 10 % of the global land area, compared to 0.1 - 0.2 % for the period 1951 - 1980.13

As is described in further detail in the revised manuscript, we estimate that a 30 % increase in progranulin is the change required to bring an average Grn + / - mouse within 2 standard deviations of wild - type levels, making this a reasonable estimate for a biologically significant increase.

The overall results — the average for the three subject areas — indicate an average positive impact on student achievement of 4 percent of a standard deviation whenever the teacher - student gender was the same (see Figure 3).

The Chetty, Friedman, and Rockoff study finds that, on average, a 1 standard deviation improvement in teacher value added (equivalent to having a teacher in the 84th percentile rather than one at the median) for one year raises a student's earnings at age 28 by about 1 percent.

For example, states with an Hispanic - population of 14 percentage points (two standard deviations) higher than the average were about 10 percent more likely to pass a charter law.

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In the case of West Virginia for 4th - grade math, the difference (60.8 percent — 28.1 percent = 32.7 percentage points) is about 0.02 standard deviations worse than the average difference between the state test and the NAEP over the three years, which is 32.4 percent.

The overall grade for each state was determined by comparing the difference with the standard deviation from the average for all states for all four years on the tests for which the state reported proficiency percentages.

We estimate that an 8th grader who attends school with 200 other 8th - grade students will score 0.04 standard deviations lower in both math and English than he would if he attended a school with 75 other 8th graders, the average cohort size for a K — 8 school.

However, it is important to note that the complications associated with being a new school can not fully explain the poor average performance of charter schools: the negative effects of attending a charter school in North Carolina remain greater than.10 standard deviations in both subjects, even for schools that have been operating for five years (see Figure 3a and 3b).

For instance, the median finding across 10 studies of teacher effectiveness estimates that a teacher who is one standard deviation above the average in terms of quality produces additional learning gains for students of 0.12 standard deviations in reading and 0.14 standard deviations in maFor instance, the median finding across 10 studies of teacher effectiveness estimates that a teacher who is one standard deviation above the average in terms of quality produces additional learning gains for students of 0.12 standard deviations in reading and 0.14 standard deviations in mafor students of 0.12 standard deviations in reading and 0.14 standard deviations in math.

Nevertheless, even the most conservative of our three methodological approaches suggests substantial variation in principal effectiveness: a principal in the top 16 percent of the quality distribution will produce annual student gains that are 0.05 standard deviations higher than an average principal for all students in their school.

After again correcting for the overrepresentation of exiters, the effects of attending a newly opened charter school were -0.17 standard deviations in reading and -0.28 standard deviations in math, or almost twice the average effect reported above for all charter schools in the state.

In both math and reading, the national test - score gap in 1965 was 1.1 standard deviations, implying that the average black 12th grader placed at the 13th percentile of the score distribution for white students.

Most Americans would be extraordinarily satisfied with average gains of one full standard deviation for a school or district.

Those students are scoring, on average, 10 percent of a standard deviation better than they would have otherwise, and since each peer evaluator evaluates 10 to 15 teachers each year, those gains are occurring in multiple teachers» classrooms for a number of years.

Illinois set its proficiency bar for 8th - grade reading at a level that is 1.01 standard deviations below the national average.

For example, in a school with three equal - sized 4th - grade classrooms, the replacement of a teacher with a VA estimate of 0.05 standard deviations with one with a VA estimate of 0.35 standard deviations should increase average test scores among 4th - grade students by 0.1 standard deviations.

At schools under for - profit management, students learned on average 25 percent of a standard deviation more in math each year of the six years of the intervention than they would have had the school been under district management.

The estimated average annual impact on reading performance of for - profit management relative to district management is a positive 10 percent of a standard deviation, approximately 36 percent of a year's worth of reading.

The average combined reading and math test scores one year prior to the management change at schools assigned to for - profit and nonprofit entities were 0.39 and 0.13 standard deviations below the Philadelphia average, respectively, while the pre-intervention scores of the full set of 142 regular public schools were 0.19 standard deviations above the district average.

To put these units in context, the average middle school student gains about a quarter of a standard deviation per year; for elementary students, the average gain is between a third and a half of a standard deviation.

At schools under nonprofit management, students learned, on average for the six years, 21 percent of a standard deviation less in math each year than they would have had their school remained under district management.

But once the data are adjusted for the effects of the key background characteristics identified above, black students appear to lose much more ground than they do in the raw averages, falling 0.16 standard deviations in math and 0.19 standard deviations in reading relative to white students (see Figure 1).

If black students in the sample continue to lose ground through 9th grade at the rate experienced in the first two years of school, they will lag behind white students on average by a full standard deviation in raw math and reading scores and by more than two - thirds of a standard deviation in math even after controlling for observable characteristics (the gap would be substantially smaller in reading).

In the elementary grades 3 through 5, students of new Teach for America teachers gained an average of 5.8 percent of a standard deviation more on the TAAS reading exam than did students with other new teachers, a difference that fell just short of statistical significance (see Figure 2).

For example, adding eight weeks (40 days) to the school year would require a class size of 24 (four students larger than the current average) and would increase test scores by 0.12 standard deviations.

In 2004, for example, average learning gains in math were only 7 percent of a standard deviation higher in A schools than in those given a B (see Figure 2).

They found that a principal in the top 16 percent of the quality distribution will produce annual student gains that are at least 0.05 standard deviations higher than will an average principal for all students in their school, or roughly two additional months of learning.

For example, instead of saying that a student performed.05 standard deviations above average, CREDO translates this as the equivalent of 29 additional days of schooling (with the scale set on a 180 day school year).

It also worked for schools failing AYP for the first time; on average, a Tar Heel State school failing AYP improved its math performance by five percent of a standard deviation.

Although Gaetz's bill does not include fiscal expenditures, as noted in the main text (§ IV, supra), in reviewing the start time / academic achievement studies undertaken by fellow economists, Columbia University Assistant Professor of Finance and Economics Jonah Rockoff and the Walter H. Annenberg Professor of Education Policy, Professor of Economics, and Professor of Education at the University of Michigan, Brian Jacob, concluded that delaying middle and high school start times «from roughly 8 a.m. to 9 a.m. -LSB-,]» will increase academic achievement by 0.175 standard deviations on average, with effects for disadvantaged students roughly twice as large as advantaged students, at little or no cost to schools; i.e., a 9 to 1 benefits to costs ratio when utilizing single - tier busing, the most expensive transportation method available.

While both boys and girls showed increases in TOSRA scores over time, only the increases for boys were significant: average increase over time was slightly greater than one half standard deviation.