investigation hypothesises that cholesterol levels in children may be affected by educating parents on proper nutrition and exercise. The sample size is 40 families child aged 10-15 years old with high cholesterol. Children mean cholesterol is 175 stand deviation 19.5 is there significant evidenceo of a relation in total cholesterol/ null value is 191 cholestrol

investigation hypothesises that cholesterol levels in children may be affected by educating parents on proper nutrition and exercise. The sample size is 40 families child aged 10-15 years old with high cholesterol. Children mean cholesterol is 175 stand deviation 19.5 is there significant evidenceo of a relation in total cholesterol/ null value is 191 cholestrol

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Heights of 10 year old children regardless of gender, closely follow a normal distribution with a mean of 55” anda standard deviation of 4.5”. If the height requirement for Batman the Ride at Six Flags Magic Mountain is 54”.What percent of 10 year old children cannot ride on Batman the Ride?
PLEASE DO IN Excel A clinical trial is run to assess the effects of different forms of regular exercise on HDL levels in persons between the ages of 18 and 29. Participants in the study are randomly assigned to one of three exercise groups - Weight training, Aerobic exercise or Stretching/Yoga – and instructed to follow the program for 8 weeks. Their HDL levels are measured after 8 weeks and are summarized below. Is there a significant difference in mean HDL levels among the exercise groups? Run the test at a 5% level of significance. HINT: SSerror = 7286.5. Exercise Group N Mean Std Dev Weight Training 20 49.7 10.2 Aerobic Exercise 20 43.1 11.1 Stretching/Yoga 20 57 12.5 Step 1. Set up hypotheses and determine level of significance. Ho: H1: alpha: Step 2. Select the appropriate test statistic and give its formula.…
Explain plz.
The weights of students in a large statistics class vary according to a normal distribution with mean 145 pounds and standard deviation 18 pounds What percent of students weigh less than 127 ?
Total cholesterol in children aged 10 to 15 years of age is assumed to follow a normal distribution with a mean of 191 and a standard deviation of 22.4. what proportion of children 10 to 15 years of age would be classified as hyperlipidermic (assume that hyperlipidermia is defined as a total cholesterol level over 200?
DO MALES AND FEMALES DIFFER ON ATTITUDES TOWARD CRIME ? MALES N=12 FEMALES N=13 CRIME ATTITUDE MALES 77, 97, 28, 55, 75, 43, 21, 70, 91, 22, 58, 45 FEMALES 32,31, 89, 21, 79, 67, 41, 24, 43, 87, 64, 28, 21 MEAN SD MALE FEMALE • DV= 1 •T-VALUE • df • SIGNIFICANT (Y/N). • TEST STATISTIC RAN • ACCEPT OR REJECT NULL HYPOTHESIS. • CONCLUSION:
What is the verbal SAT score such that only 16% of admitted students had a higher score? Mean=660 Standard Deviation = 40
How do I apply a normal curve to a sample of test scores. n=50 range=27 min=72 max=99 mean=85.94 median=87 mode=89 standard deviation=5.99 skewness= -.39
Total blood volume (in ml) per body weight is important in medical research. For healthy adults, the red blood cell volume mean is about 34 ml/kg. Red blood cell that is too low or too high can indicate a medical problem. Suppose that Roger has 20 blood tests and the mean is 35.4 ml/kg. Suppose that red blood cell volume follows normal distribution with standard deviation 2.34 ml/kg. With 5% significance level, test that the mean blood cell volume is different from 28ml/kg. Which test to use? a.) None of the answer choices b.) T-test for the Mean c.) T-test for Proportion d.) Z-test for the Mean e.) Z-test for Proportion
Is narcissism a more common personality trait today than it was a few decades ago? It is known that the mean population score on the Narcissistic Personality Inventory (NPI) for students attending University of South Alabama around 20 years ago was μ= 15 (Twenge, 2010). Interested in the narcissism levels of students in the year 2020, a researcher administers the NPI to a random sample of 25 University of Alabama sophomores this Spring term. The mean NPI score from the researcher’s sample of sophomores is M = 16.5, with s = 3.4. 1. Write the null and alternative hypotheses in symbols. Possible symbols for your answer: H0, H1, μ, M, σ. 2. Calculate the standard error. 3. Find the critical value for the test statistic, assuming alpha = .05 (Use largest [i.e., most conservative] value if exact value not given in the chart) a) 2.064 b) 1.96 c) 1.98 d) 2.000
A small hospital wants to create a more welcoming environment for patients with mental illnesses--starting with employee training. As part of a pre-training assessment, employees complete a 10-point Attitudes Toward Mental Illness scale (higher = more positive attitudes). The pre-training data are: 4, 10, 2, 7, 7, 6, 6 Make a Frequency Table 1 Make a Frequency Histogram 2 Find the mean, median & mode 3 Calculate the SD What are the (pre-training) employee attitudes toward mental illness like?
Bone mineral density (BMD) is a measure of bone strength. Studies show that BMD declines after age 45. The impact of exercise may increase BMD. A random sample of 59 women between the ages of 41 and 45 with no major health problems were studied. The women were classified into one of two groups based upon their level of exercise activity: walking women and sedentary women. The 39 women who walked regularly had a mean BMD of 5.96 with a standard deviation of 1.22. The 20 women who are sedentary had a mean BMD of 4.41 with a standard deviation of 1.02. Which of the following inference procedures could be used to estimate the difference in the mean BMD for these two types of women