According to the national center of education statistics, 67% of Texas students are eligible to receive...

According to the national center of education statistics, 67% of Texas students are eligible to receive free or reduced-price lunches. Suppose you randomly choose 310 Texas Students. Find the probability that no more than 73% of them are eligible to receive free or reduced-price lunches.

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orchestra answered 1 year ago

According to the National Center for Education Statistics, 69% of Texas students are eligible to receive...

According to the National Center for Education Statistics, 69% of Texas students are eligible to receive free or reduced-price lunches. Suppose you randomly choose 285 Texas students. Find the probability that no more than 73% of them are eligible to receive free or reduced-price lunches.

The National Center for Education Statistics found that in 2015, 41% of students nationwide reported that...

The National Center for Education Statistics found that in 2015, 41% of students nationwide reported that their mothers had graduated from college. A superintendent randomly sampled 356 students from her local school district and found that 43% of them had mothers that graduated from college. Does her sample give evidence of a higher education level among mothers in her district? Use a significance level of ? = 0.05. a) State the hypotheses in symbols. b) Run the test and...

The National Center for Education Statistics reported that 47% of college students work to pay for...

The National Center for Education Statistics reported that 47% of college students work to pay for tuition and living expenses. Assume that a sample of 450 college students was used in the study. a. Provide a 95 % confidence interval for the population proportion of college students who work to pay for tuition and living expenses. (to 2 decimals) b. Provide a 99 % confidence interval for the population proportion of college students who work to pay for tuition and...

1. According to the U.S. Department of Education. Institute of Education Sciences, National Center for Education...

1. According to the U.S. Department of Education. Institute of Education Sciences, National Center for Education Statistics 1,026,000 high school seniors (rounded to the nearest thousand) took the ACT test as part of the college admissions process. The mean composite score was 21.1 with a standard deviation of 4.8. The ACT composite score ranges from 1 to 36, with higher scores indicating greater achievement in high school. According to the central limit theorem, what are the mean and standard error...

The National Center for Education Statistics reports the following statistics for surveys of 12,320 female college...

The National Center for Education Statistics reports the following statistics for surveys of 12,320 female college students and 9,184 male college students. 36% of females work 16-25 hours per week 38% of males work 16-25 hours per week Suppose two students are selected with replacement. Find the probability that the first student is a female that works 16-25 hours per week and the second student is a female that works 16-25 hours per week. Round your answer to three decimal...

The National Center of Education Statistics conducted a survey of high school seniors,

5.20 High School and Beyond, Part I: The National Center of Education Statistics conducted a survey of high school seniors, collecting test data on reading, writing, and several other subjects. Here we examine a simple random sample of 200 students from this survey. Side-by-side box plots of reading and writing scores as well as a histogram of the differences in scores are shown below. (b) Create hypotheses appropriate for the following research question: is there an evident difference in the average...

The National Center of Education Statistics conducted a survey of high school seniors

High School and Beyond, Part l. The National Center of Education Statistics conducted a survey of high school seniors, collecting test data on reading, writing, and several other subjects. Here we examine a simple random sample of 200 students from this survey. A histogram of the difference in the reading and writing score of each student is shown below. .1. Which set of hypotheses is appropriate for the following research question: is there an significant difference in the average scores of students...

According to the National Center for Health Statistics (2014), p = 0.21 of adults are smokers....

According to the National Center for Health Statistics (2014), p = 0.21 of adults are smokers. Assume the population is the U.S. adult population of N = 235,224,016. A random sample of n = 450 adults is obtained. a. Describe the Distribution of the Sample Proportion, ?̂ , in terms of shape, center and spread, for the proportion of U.S. adults who smoke (3 pts): • Shape: np(1-p) ≥ 10 • Center: ??̂ • Spread: ??̂ = √?̂(1−?̂)? b. In...

According to the National Center for Health Statistics (2018), there were 3,855,500 births registered in the...

According to the National Center for Health Statistics (2018), there were 3,855,500 births registered in the United States in the year 2017. The mean age of mothers at first birth was 26.8 years. Lets suppose that the standard deviation is 3 years. Use this information to answer questions #1 through #4. Question 1 What proportion of first time mothers gave birth before the age of 18? Question 2 What proportion of first time mothers gave birth after the age of...

According the National Center for Health Statistics, the distribution of serum cholesterol levels for 20- to...

According the National Center for Health Statistics, the distribution of serum cholesterol levels for 20- to 74-year-old males living in the United States has mean 211 mg/dl, and a standard deviation of 46 mg/dl. a. We are planning to collect a sample of 25 individuals and measure their cholesterol levels. What is the probability that our sample average will be above 230? b. Which numbers are 1.96 standard errors away rom the expected value of the sampling distributions(i.e. 95% of...

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