Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

statisticss Statistics and Probability TEST STATISTICS on POPULATION MEAN and PROPORTION ACTIVITIES I. Solve the given problem using the step-by-step procedure of solving TEST STATISTICS.

statisticss

image text in transcribed
Statistics and Probability TEST STATISTICS on POPULATION MEAN and PROPORTION ACTIVITIES I. Solve the given problem using the step-by-step procedure of solving TEST STATISTICS. a. The school nurse thinks the average height of 11" graders has decreased. The average height of a 11" grader five years ago was 163cm with a standard deviation 20cm. She takes a random sample of 200 students and finds that the average height of her sample is 160cm. Using 95% confidence level, are 11" graders now smaller than those 11" graders before? b. The heart rates of 50 patients in an ICU have a mean of 95.3 beats/min and standard deviation 16.9 beats/min. Are heart rates from ICU patients faster than usual? Given normal heart rate mean of 72 beats/min with a significance of 0.05. c. An English teacher wanted to test the mean reading speed of students of 550 words per minute. A sample of 25 students revealed a sample mean of 542 words per minute with a standard deviation of 25 words per minute. At 0.10 significance level, is the reading speed different from 550 words per minute? d. It has been claimed that 30% of students in a particular SHS dislike Mathematics. When a survey was conducted by a researcher, it showed that 145 of 800 students dislike Mathematics. Test if the claim was different at a = 0.10 level. e. It has been claimed that 50% of qualified applicants passed in a particular job interview. When a survey was conducted by a researcher of a certain company, it showed that 85 of 155 applicants passed the job interview. Test if the claim was larger at a = 0.05 level. ESSAY Kindly just explain the purpose or goal of each step in solving test statistics. Also give your thoughts about the importance of this lesson

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Mathematical Analysis I

Authors: Vladimir A Zorich, Roger Cooke, Octavio Paniagua Taboada

2nd Edition

3662487926, 9783662487921

More Books

Students also viewed these Mathematics questions

Question

What are the outcomes the client wants?

Answered: 1 week ago

Question

What has been done before?

Answered: 1 week ago