Determining the percentile rank
The following frequency distribution presents a set of exam scores for a class of N = 20 students. What is the percentile rank for X = 90?
x f cf c%
90-99 4 20 100
80-89 7 16 80
70-79 4 9 45
60-69 3 5 25
50-59 2 2 10
Now Priced at $10 (50% Discount)
Recommended (96%)
Rated (4.8/5)
Suppose we have a population of scores with a mean (µ) of 975 and a standard deviation (s) of 15. What percentage of the population will lie between 960 and 990?
A researcher has reason to believe that, for an experiment with 50 points, a 95% prediction interval would be of width 8. If the researcher wishes to run a more precise experiment that will result in a 95% prediction interval of width 4, then the
Find examples in the research that utilize the independent and dependent t-tests that are used to answer a question. Find the t value and its associated p value.
What is the probability that a baby is born between 5:15 and 5:25, given that it was born between 5:00 and 6:00?
The concept of Type I and Type II Error is critical and will come into play with each and every statistical test you perform. Discuss the implications of making both a Type I and Type II error.
Suppose the probability distribution X= number of jobs held during the past year. Find the probability that a randomly selected student held two or few jobs during the past year.
When 325 college students are randomy selected and surveyed, its found that 117 own cars. Construct a 99% confidence interval estimate of the true proportion of all college students who own cars.
A random sample of discount prices gives the following prices: 221, 286, 290, 330, 310, 250, 270, 280, 299, 265, 291, 275, and 281. At one percent level of significance, can you conclude that the mean fare has increased?
1954824
Questions Asked
3,689
Active Tutors
1456201
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
A nurse is caring for a client who has herpes zoster and asks the nurse about the use of complementary and alternative therapies for pain control
You are a youth worker at a community centre. One day, a teenager you work with comes to you with concerns about their safety at home.
A nurse is caring for a client who has a prescription for 5 units of regular insulin and 10 units of NPH insulin to mix together and administer subcutaneously
Problem: Which of the following statements about the connection between calorie restriction and longevity is accurate?
Problem: While obtaining a series of specimens of occult blood. Which instructions should practical nurse PN provide the client?
Following the 1979 surgeon general's report, the nation's health became the focal point of many activities. A specific document outlined goals
Music therapy is included In the treatment plan for an older adult client with Alzheimer's disease Which outcome indicate to the practical nurse (PN)