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a. Suppose you are interested in how children with severe autism experienced the receipt of special education assistance in public schools. This population is characterized by underdevelopment of social cognition, social skills, and language skills. What is the best method for collecting data to answer your research question? Why is this method best? How would you describe the research design?
b?. Suppose you are interested in how children with severe autism experienced the receipt of special education assistance in public schools. This population is characterized by underdevelopment of social cognition, social skills, and language skills. How many children should be included in the study? Why? What are the factors considered in making this determination?
Explain why one would expect to find a positive correlation between the number of fire engines that respond to a fire and the amount of damage done in the fire. Does this mean that the damage would be less extensive if fewer fire engines were disp..
I believe this can be done by plotting out every 3 years average number of people working past 65 since 1997 until now and then making a predictability study as to number of people who will be working over the age of 65 in 2012.
the weights of envelopes sent from an insurance office are normally distributed with mean 12 ounces and standard
What is the shortest time period in which the project can be completed using the expected times listed in the table above. What is the shortest time in which the project can be completed if extra money is used to reduce the times for certain activi..
How might an age difference confound these research findings about the relationship between depression and ability to survive a heart attack?
For the control group, the mean was 70.3 and the standard deviation was 8.3. (a) Do beta-blockers reduce the pulse rate? State the hypotheses and do a t test.
a statistics professor plans classes so carefully that the lenghts of her classes are uniformly distrubted between 48.0
a way to make screening tests more economical is to pool samples. suppose that we would like to screen for a rare blood
He then calculates the percentages and finds that 10% of females and 6% of males had reoffended and concludes that female sex offenders were more likely to reoffend than male sex offenders. What is wrong with his conclusion?
Sony's new optical disk system prototype tested and claimed to be able to record an average of 1.2 hours of high-definition TV.- Assume n = 10 trials and σ = 0.2 hour. Give a 90% confidence interval.
Residing in Fort Walton Beach, Florida and working at Eglin AFB. It can be a challenge to drive to each morning since the base is under construction. If there's an accident or construction being worked, this can also increase the wait time it ta..
Find the 90% confidence interval estimate of the population mean. Interpret the interval estimate. 79 43 58 66 101 63 79 33 58 71 60 101 74 55 88.
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