Exercise: Sample Size to Estimate aPopulation Mean µ-Textbooks• Suppose the financial aid office wants to estimate themean UTEM semester textbook cost u within E=RM25with 98% confidence. How many students should besampled? Previous data shows o is about RM85. Point & Interval Estimates:Interval Estimation of a Population Proportion (LargeSample)Exercise:• Of a random sample of n = 150 college students, 104 ofthe students said that they had played on a football teamduring their U-18 years. Estimate the proportion ofcollege students who played soccer in their youth with a90% confidence interval.

Answered: Exercise: Sample Size to Estimate a…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Salma claimed that the gas price in Blue Park neighborhood (mean of $3.65) is higher than that in Green Spring (mean of $3.59). She obtained the t-value of 2.223 after calculating data from 6 gas stations in Blue Park and 5 gas stations in Green Spring. Use the chart below and determine if Salma's claim is supported! Table 10-3. Critical values of "t" significance level p= 0.05 significance level p= 0.01 TP 1 12.706 63.657 2 4.303 9.925 3 3.182 5.841 2.776 4.604 5 2.571 4.032 6 2.447 3.707 7 2.365 3.499 2.306 3.355 9 2.262 3.250 10 2.228 3.169 11 2.201 3.106 Copy the following into your text box, fill in the blanks, and answer the questions A. The degree of freedom is: B. The t-calculated value is: and the t-critical value is : C. Comparison: t-calc t-crit (answer with ()) D. Is the null hypothesis accepted or rejected? Explain how you determined that! Also, explain what it means to reject or accept the hypothesis! E. Explain if Salma's claim is supported based on your t-value…
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Exercise: Sample Size to Estimate a Population Mean µ-Textbooks • Suppose the financial aid office wants to estimate the mean UTEM semester textbook cost u within E=RM25 with 98% confidence. How many students should be sampled? Previous data shows o is about RM85.