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A medical social researcher wishes to investigate the proportion of Type II diabetic patients in a given country town who take insulin to manage their diabetes. A random sample of 120 Type II diabetes patients across the medical practices in the town was surveyed and 43 reported taking insulin to manage their diabetes.
Perception of Time- Randomly selected statistics students of the author participated in and experiment to test their ability to determine when 1 min(or 60 seconds) has passed.
Calculate an approximate sample size that we may use in this situation.please can you solve it in details with the steps
Select a legitimate sampling strategy and collect at least 30 data points using your created question or topic. Discuss the sampling strategy in sufficient detail so that someone else could repeat your data collection without any difficulties or q..
compute the correlation coefficient for the data belowx values -5 -1 1 2y values 3 -1 -3 3a 0.641b 0.453c - 0.411d -
Find a 90% confidence interval for the true variance of the hourly wage rate for all seniors who had summer jobs. What assumption is required in order to find the said interval?
A random sample of 50 female CFO's and a random sample of 40 male CFO's are selected. Find the expected value of the sample mean difference.
a sample of 90 women is obtained and their heights in inches and pulse rates in beats per minute are measured. the
Define what a hypothesis is and discuss the relationship between hypothesis testing and statistics. Discuss what independent and dependent variables are in an experiment, state the relationship between the two and give an example.
a wet compression refrigeration cycle uses hfc-134a as the working fluid and operates between 75 f and 8 f. use a mass
But each such incident costs $50. What is the probability that maintenance expenses for the press will be no more than $100 on a typical 8 hour workday?
Drawing Conclusions from Unknown Characteristics of Data
A standard deviation of 12.4. A local census taken several years ago shows the mean weight of adult women was 115 lbs. The df for determining tcrit
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