Use the Standard Normal Table or technology to find the z-score that corresponds to the cumulative area 0.9362. Z: (Type an integer or decimal rounded to two decimal places as needed.)
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Q: The state education commission wants to estimate the fraction of tenth-grade students that have…
A: Solution
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- The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. Suppose a sample of 2552 tenth graders is drawn. Of the students sampled, 2119 read above the eighth grade level. Using the data, estimate the proportion of tenth graders reading at or below the eighth grade level. Enter your answer as a fraction or a decimal number rounded to three decimal places.Calculate (x-bar) for the data shown, to two decimal places 19.7 10.4 11.8 26.1 27.3 2982 students at a college were asked whether they had completed their required English 101 course, and 52 students said "yes". Find the best point estimate for the proportion of students at the college who have completed their required English 101 course. Round to four decimal places.
- Using this data set: 8, 9, 5, 4 ,7, and 8, find the following: ∑X² = [blank]Customers arrive at a rate of 40 per hour. You can process 50 customers per hour. a. What percentage of the time are you busy? b. What is the average number of customers in the system? c. What is the average time that a customer spends in the system (in minutes)?140 students at a college were asked whether they had completed their required English 101 course, and 83 students said "yes". Find the best point estimate for the proportion of students at the college who have completed their required English 101 course. Round to four decimal places.
- he average consumer unit spent $1874 on apparel and services in2006.That same year, 25 consumer units in theNorth-east had the following annual expenditures, in dollars, on apparel and services. 1417, 1595, 2158, 1820, 1411, 2361, 2371, 2330, 1749, 1872, 2826, 2167, 2304, 1998, 2582, 1982, 1903, 2405, 1660, 2150, 2128, 1889, 2251, 2340, 1850 At the 5% significance level, do the data provide sufficient evidence to conclude that the 2006 mean annual expenditure on apparel and services for consumer units in the Northeast differed from the national mean of $1874?101 students at a college were asked whether they had completed their required English 101 course, and 72 students said "yes". Find the best point estimate for the proportion of students at the college who have completed their required English 101 course. Round to four decimal places.The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level. Step 1 of 2: Suppose a sample of 281 tenth graders is drawn. Of the students sampled, 56 read at or below the eighth grade level. Using the data, estimate the proportion of tenth graders reading at or below the eighth grade level. Enter your answer as a fraction or a decimal number rounded to three decimal places.
- Estimate the average mark in an exam using the following table: Marks Total Percentage of Students (Type your final answer in decimal form.) Answer: 0-10 0- < 20 0-< 30 0- <400- <50 0.14 0.26 0.56 0.8 188 students at a college were asked whether they had completed their required English 101 course, and 58 students said "yes". Find the best point estimate for the proportion of students at the college who have completed their required English 101 course. Round to four decimal places.94 students at a college were asked whether they had completed their required English 101 course, and 73 students said "yes". Find the best point estimate for the proportion of students at the college who have completed their required English 101 course. Round to four decimal places.
