Purchase Solution

Interpret P-Value using a One-Tail Test for SAT Scores

Not what you're looking for?

Ask Custom Question

A study has been conducted to examine the effectiveness of new experimental program for preparing high school students for the Scholastic Aptitude Test. Eighty students have been randomly divided into two groups of 40. The eventual SAT scores for those exposed to the new program and the conventional program are listed in data file XR11043. Use a one-tail test and the 0.25 level of significance in concluding whether the experimental program migh be better than the conventional method in preparing students for the SAT. Determine and interpret the p-value for the test.

Attachments
Purchase this Solution
Solution Summary

The solution provides step-by-step method of performing a two-sample hypothesis test for the mean. All the steps of hypothesis testing (formulation of null and alternate hypotheses, selection of significance level, choosing the appropriate test-statistic, decision rule, calculation of test-statistic and conclusion) have been explained and the statistical analysis has been shown in details. The calculations have been shown in EXCEL for better understanding.

Purchase this Solution
Free BrainMass Quizzes
Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.

Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

View More Free Quizzes
Related BrainMass Solutions

  • Coaching company claims for raising SAT scores

    ., if students who are coached increased their scores significantly) is one tailed, we will find the one-tail p value. We can find the p value for t = 10.16 using the TDIST function in excel.

  • One Tail/Two Tail Rejection Regions

    For each of the following test and z values, determine the p-value for the test: a. Left-tail test and z = -1.62 = P [Z < -1.62] = 0.0526 p-value = 0.0526 b.

  • proportion testing for SAT scores

    129025 proportion testing for SAT scores Two high school principals are arguing about who has the better school.

  • Hypothesis Testing Calculations

    Answer Z-score = (X - μ)/σ = (20 - 17)/3.4 = 0.88235 8 Using a standard normal probabilities table, interpret the results for the Z score in Problem 7.

  • Statistics: 3 MCQs on P-value and Null Hypothesis

    280994 Statistics: 3 multiple choice questions on P-value and null hypotheses (See attached file). A random sample of eighty-five students in Chicago city high schools takes a course designed to improve SAT scores.

  • Hypothesis testing, ANOVA, statistics and probability

    (a) State the hypotheses for a right-tailed test. (b) Obtain a test statistic and p-value assuming equal variances. Interpret these results. (c) Is the difference in mean scores large enough to be important?

  • Testing of hypothesis

    4) A state school administrator says the the standard deviation of SAT verbal test scores is 105. A random sample of 14 SAT verbal test scores has a standard deviation of 113. At a=0.01, test the administrator's claim.

  • Degrees of freedom, value of the test statistic, null hypotheses

    Taking a two tailed test in which the Hypothesis are: Value of test statistic Degrees of freedom = n-1 = 16-1 = 15 p-value for a two tailed test = 0.0245 Since p-value is less that alpha = 5%, we reject the null hypothesis.

  • Testing of hypothesis for proportion

    The null hypothesis tested is H0: Gender has no effect on SAT scores The alternative hypothesis is H1: Gender has no effect on SAT scores Test statistic used is F test (ANOVA).

View More Related Solutions