Question

In: Math

Practice Problems SIBNUM work age RELSTAT DRKFRQ Mean 1.75 9.65 22.6 2.13 3.04 Std. Deviation 1.117...

Practice Problems

SIBNUM

work

age

RELSTAT

DRKFRQ

Mean

1.75

9.65

22.6

2.13

3.04

Std. Deviation

1.117

9.20

2.4

1.124

0.77

Minimum

0

0

2

1

1

Maximum

6

40

45

6

5
  1. Using the 50-35-14-2 rule, sketch each of the distributions above.

  1. For each variable, calculate the value of X at the 40th %ile and the 61nd %ile.

  1. For each variable, calculate the %ile corresponding to a score of 4 on the variable.

  1. 2013 SAT subscores for the nation are given below.

A) For the composite, what score do you need to qualify for Mensa, which requires you to be in the top 2% of the population?

B) Oddly enough, Phillip scored exactly 500 on each subscore… what percent of students scored higher in each subscore? What percent of students scored LOWER than his composite score of 1000?

C) MU admissions accept a 1080 composite score as sufficient to demonstrate potential success as a student. What percent of students qualify?

D) The MU honor’s college accepts incoming freshmen with a composite SAT of 1380 (if you were ALSO top 15%ile of high school class). What percent of students qualify with that composite score?

Subscore

Reading

Math

Writing

Composite

Mean

413

556

468

1010

SD

114

117

113

231

Solutions

Expert Solution

First question not clear.

The second question solved completely.

A) For the composite, what score do you need to qualify for Mensa, which requires you to be in the top 2% of the population?

B) Oddly enough, Phillip scored exactly 500 on each subscore… what percent of students scored higher in each subscore? What percent of students scored LOWER than his composite score of 1000?

Scored more in reading

scored more in Maths

Scored more in Writing

Socred lower than a composite score of 1000

C) MU admissions accept a 1080 composite score as sufficient to demonstrate potential success as a student. What percent of students qualify?

D) The MU honor’s college accepts incoming freshmen with a composite SAT of 1380 (if you were ALSO top 15%ile of high school class). What percent of students qualify with that composite score?

milcah answered 2 months ago
Next > < Previous

Related Solutions

Students Born in USA MEAN GPA: 3.05 STD DEVIATION: .511 MEAN AGE: 27 STD DEVIATION: 10...
Students Born in USA MEAN GPA: 3.05 STD DEVIATION: .511 MEAN AGE: 27 STD DEVIATION: 10 MEAN HOURS SPEND ON HW: 8.50 STD DEVIATION: 4.72 STUDENTS BORN OUTSIDE USA MEAN GPA: 3.26 STD DEVIATION: .428 MEAN AGE: 31 STD DEVIATIONS: 10.5 MEAN HOURS SPENT ON HW: 14.13 STD DEVIATION: 10.4 1. If one student is randomly selected from the USA born group, find the probability of getting someone with a GPA greater than 3.88. 2. If one student is randomly...
Descriptives Current stress level N Mean Std. Deviation Std. Error 95% Confidence Interval for Mean Minimum...
Descriptives Current stress level N Mean Std. Deviation Std. Error 95% Confidence Interval for Mean Minimum Maximum Lower Bound Upper Bound Psychologist 5 1.0000 1.73205 .77460 -1.1506 3.1506 .00 4.00 Doctor 5 5.0000 2.23607 1.00000 2.2236 7.7764 2.00 8.00 Lawyer 5 6.0000 1.87083 .83666 3.6771 8.3229 4.00 9.00 Total 15 4.0000 2.87849 .74322 2.4059 5.5941 .00 9.00 Test of Homogeneity of Variances Current stress level Levene Statistic df1 df2 Sig. .170 2 12 .845 ANOVA Current stress level Sum of...
Group Statistics gender N Mean Std. Deviation Std. Error Mean salary male 47 32442.23 3117.026 454.665...
Group Statistics gender N Mean Std. Deviation Std. Error Mean salary male 47 32442.23 3117.026 454.665 female 47 33920.57 3824.284 557.829 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means F Sig. t df Sig. (2-tailed) Mean Difference Std. Error Difference 95% Confidence Interval of the Difference Lower Upper salary Equal variances assumed .964 .329 -2.054 92 .043 -1478.340 719.648 -2907.624 -49.057 Equal variances not assumed -2.054 88.404 .043 -1478.340 719.648 -2908.399 -48.282 Here we...
Group Statistics Group N Mean Std. Deviation Std. Error Mean Scores male 50 49.7200 10.40220 1.47109...
Group Statistics Group N Mean Std. Deviation Std. Error Mean Scores male 50 49.7200 10.40220 1.47109 female 50 31.5800 11.59009 1.63909 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means F Sig. t df Sig. (2-tailed) Mean Difference Std. Error Difference 95% Confidence Interval of the Difference Lower Upper Scores Equal variances assumed .519 .473 8.236 98 .000 18.14000 2.20243 13.76934 22.51066 Equal variances not assumed 8.236 96.876 .000 18.14000 2.20243 13.76871 22.51129 Imagine that...
Question 2: Related-Samples t-Test Paired Samples Statistics Mean N Std. Deviation Std. Error Mean Pair 1...
Question 2: Related-Samples t-Test Paired Samples Statistics Mean N Std. Deviation Std. Error Mean Pair 1 freshman yr science score 51.8500 200 9.90089 .70010 senior yr science score 53.0450 200 12.10145 .85570 Paired Samples Correlations N Correlation Sig. Pair 1 freshman yr science score & senior yr science score 200 .878 .000 Paired Samples Test Paired Differences t df Sig. (2-tailed) Mean Std. Deviation Std. Error Mean 95% Confidence Interval of the Difference Lower Upper Pair 1 freshman yr science...
Question 2: Related-Samples t-Test Paired Samples Statistics Mean N Std. Deviation Std. Error Mean Pair 1...
Question 2: Related-Samples t-Test Paired Samples Statistics Mean N Std. Deviation Std. Error Mean Pair 1 freshman yr science score 51.8500 200 9.90089 .70010 senior yr science score 53.0450 200 12.10145 .85570 Paired Samples Correlations N Correlation Sig. Pair 1 freshman yr science score & senior yr science score 200 .878 .000 Paired Samples Test Paired Differences t df Sig. (2-tailed) Mean Std. Deviation Std. Error Mean 95% Confidence Interval of the Difference Lower Upper Pair 1 freshman yr science...
1. Agile Methods Practice Problems. Complete these problems, showing your work. 1a. At the end of...
1. Agile Methods Practice Problems. Complete these problems, showing your work. 1a. At the end of Day 1 of a sprint there are 90 story points worth of work remaining, and at the end of Day 6 there are 40 story points of work remaining. What is the project’s current velocity, in units of story points per day? (Show your work) 1b. A project whose sprint velocity is 12 story points per day at the end of Day 4, and...
Std. Err (standard error): The average deviation of sample means from the hypothesized population mean of...
Std. Err (standard error): The average deviation of sample means from the hypothesized population mean of 4.73 drinks is about 0.44 drinks. T-stat (T-score): The observed sample mean of 3.93 drinks is 1.8 standard errors below the hypothesized population mean of 4.73 drinks. P-value: If the population mean is 4.73 drinks, there is a 7.2% chance that sample means will have an error larger than that observed in our sample (observed error = 4.73 – 3.93 = 0.8 drinks) when...
The average score and standard deviation of a kinesiology test were; Mean: 80 Std Dev: 4...
The average score and standard deviation of a kinesiology test were; Mean: 80 Std Dev: 4 What percentage of scores on the test were below 76? Show your calculations. 3 points What percentage of scores on the test were above 83? Show your calculations. 3 points What percentage of scores on the test were between 76 and 83? Show your calculations. 1 point What score on the test did a student earn if that student was at the 25th percentile...
What is the null hypothesis. Descriptive Statistics Mean Std. Deviation N Number of children 2.50 1.652...
What is the null hypothesis. Descriptive Statistics Mean Std. Deviation N Number of children 2.50 1.652 912 Children Living at Home 1.08 1.237 912
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT