question 4 Start from 1 pagr and then second page. i need this question solution urgently • Exercise 4Historically, biology has been taught through lectures, and assesument of learning was accomplished by testing vocabulary and memorized facts.A teacher-devoloped new curriculum, Biology: A Community Content(BACC), is standards based, activity oriented, and inquiry centered. Stu-dents taught using the historical and new methods were tested in thetraditional sense on biology concepts that featured biological knowledgeand process skills. The results of a test on biology concepts were publishedin The American Biology Teacher and are given in the following table.StandardSampleSizeMeanDeviation5.5913.3814.06372Pretest: all BACC classesPretest. all traditional3685.45Posttest: all BACC classes18.503658.03Posttest: all traditional16.502986.961. Give a 90% confidence interval for the mean posttest score for allBACC students2. Find a 95% confidence interval for the difference in the mean posttestscores for BACC and traditionally taught students.

Answered: 1. Give a 90% confidence interval for…

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter1: Solving Linear Equations

Section1.5: Rewriting Equations And Formula

Problem 49E

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Cholesterol Cholesterol in human blood is necessary, but too much can lead to health problems. There are three main types of cholesterol: HDL (high-density lipoproteins), LDL (low-density lipoproteins), and VLDL (very low-density lipoproteins). HDL is considered “good” cholesterol; LDL and VLDL are considered “bad” cholesterol. A standard fasting cholesterol blood test measures total cholesterol, HDL cholesterol, and triglycerides. These numbers are used to estimate LDL and VLDL, which are difficult to measure directly. Your doctor recommends that your combined LDL/VLDL cholesterol level be less than 130 milligrams per deciliter, your HDL cholesterol level be at least 60 milligrams per deciliter, and your total cholesterol level be no more than 200 milligrams per deciliter. (a) Write a system of linear inequalities for the recommended cholesterol levels. Let x represent the HDL cholesterol level, and let y represent the combined LDL VLDL cholesterol level. (b) Graph the system of inequalities from part (a). Label any vertices of the solution region. (c) Is the following set of cholesterol levels within the recommendations? Explain. LDL/VLDL: 120 milligrams per deciliter HDL: 90 milligrams per deciliter Total: 210 milligrams per deciliter (d) Give an example of cholesterol levels in which the LDL/VLDL cholesterol level is too high but the HDL cholesterol level is acceptable. (e) Another recommendation is that the ratio of total cholesterol to HDL cholesterol be less than 4 (that is, less than 4 to 1). Identify a point in the solution region from part (b) that meets this recommendation, and explain why it meets the recommendation.

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1. Give a 90% confidence interval for the mean posttest score for all BACC students 2. Find a 95% confidence interval for the difference in the mean posttest scores for BACC and traditionally taught students.