An education researcher claim that 57% of college student work year round. In a random sample...

An education researcher claim that 57% of college student work year round. In a random sample of 300 collgege students, 171 say they work year round. a= 0.01, is there enough evidence to reject ?

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orchestra answered 2 years ago

an education researcher claims that 54% of college students work year round. in a random sample...

an education researcher claims that 54% of college students work year round. in a random sample of 200 college students 108 say they work year round at alpha =0.10, is there enough evidence to reject the reseachers claim

An education researcher claims that 62% of college students work year round. in a random sample...

An education researcher claims that 62% of college students work year round. in a random sample of 200 college students, 124 say they work year round. At a =0.01. what is the critical values? what is standardized test statistic? Identify the P-value? reject or fail to reject?

An education researcher claims that 62% of college students work year-round. In a random sample of...

An education researcher claims that 62% of college students work year-round. In a random sample of 200 college students, 124 say they work year-round. At alpha equals=0.010, is there enough evidence to reject the researcher's claim? A.) What is the critical value? B.) What is the rejection region? C.) What is the standardized test statistic z? D.) Should the null hypothesis be rejected?

A researcher drew a random sample of 57 college students and asked whether they knew how...

A researcher drew a random sample of 57 college students and asked whether they knew how to properly recycle e-waste. The researcher also asked them their academic major (whether they were a computer science major "yes" or "no"). The researcher obtained the results in the table below. Open the M15 Data File and follow the instructions on how to run a chi-square test in SPSS. Do you know how to properly recycle e-waste? Academic Major Yes No Non-Computer Science 5...

11. A random sample of 50 college student students shows that the score of a College...

11. A random sample of 50 college student students shows that the score of a College Statistics is normally distributed with its mean, 83 and standard deviation, 7.5. Find 95 % confidence interval estimate for the true mean.

1. A random sample of 40 college student students shows that the score of a College...

1. A random sample of 40 college student students shows that the score of a College Statistics is normally distributed with its mean, 81 and standard deviation, 8.4. Find 99 % confidence interval estimate for the true mean.

A researcher at the college used a random sample of 30 students to investigate sleep patterns...

A researcher at the college used a random sample of 30 students to investigate sleep patterns of two groups. The output below was constructed from this study for comparing average sleep hours of students who have early classes versus students who do not have early classes. The hours of sleep for both group of students are stored in EarlyClass.xlsx. Download and open this file into Excel. Use Excel to undertake a suitable test to address the research question below. NoEarlyClass...

At Finy Community College, 63% of the student body are freshmen. A random sample of 42...

At Finy Community College, 63% of the student body are freshmen. A random sample of 42 student names taken from the Dean’s Honor List over the past several semesters showed that 28 were freshmen. Does this indicate the population proportion of freshmen on the Dean’s list is greater than 63%? Use a 1% level of significance. (a) state the null hypothesis and (b) the alternate hypothesis, (c) State the type of test that you will use to test the hypothesis,...

A random sample of 49 colleges yielded a mean cost of college education of $30,500 per...

A random sample of 49 colleges yielded a mean cost of college education of $30,500 per year. Assume that the population standard deviation is $3000 and college costs are normally distributed. a.) Calculate the standard error of the mean. Round to the hundredth. b.) Calculate the lower bound for a 90% confidence interval for the population mean cost of education. Round to the hundredth. c.) Calculate the upper bound for a 90% confidence interval for the population mean cost of...

. A researcher took a random sample of 600 college students and surveyed them about how...

. A researcher took a random sample of 600 college students and surveyed them about how many days of class they missed per semester. On average, the sample missed 3.1 days of class. If the sample standard deviation is .45, construct a confidence interval to estimate the true population mean at the 95% confidence level (.05 alpha level). Make sure to interpret your results in a sentence or two! (HINT: Make sure you use the correct formula for this question,...

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