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Question: How far do rich parents take us? How much education children get is strongly associated with the wealth and social status of their parents. In social science jargon, this is "socioeconomic status," or SES. But the SES of parents has little influence on whether children who have graduated from college go on to yet more education. One study looked at whether college graduates took the graduate admissions tests for business, law, and other graduate programs. The effects of the parents' SES on taking the LSAT test for law school were "both statistically insignificant and small."
(a) What does "statistically insignificant" mean?
(b) Why is it important that the effects were small in size as well as insignificant?
a discrete random variable can be described as binomial distribution if is satisfies four conditions briefly discuss
If we know that the length of time it takes a college student to find a parking spot in library parking lot follows a normal distribution with mean of 3.5 minutes and a standard deviation of 1 minute, determine the probability that a randomly sele..
The data set vitamin .txt contains the results of a study on vitamins. Three groups of test subjects each received a different treatment (three different vitamin formulations). Each subject's calcium levels before and after treat ment were record..
Your bakery produces loaves of bread with '1 pound' written on the label. Here are weights of randomly sampled loaves from today's production:
find two dollar values such that 95% of all gas stations charge somewhere between these two values.- Can you find any other acceptable answers?
Find the expected number of boys in royal family and the expected num- ber of girls - Show that, if X and Y are random variables taking on only two values each.
Question 1. (Descriptive Statistics; 1 + 1 + 2 + 2 + 2 = 8 marks) Investment Returns: These data are the annual returns of 80 dividend stocks for the years 2005 and 2010. (i) Produce a histogram of the 2005 returns with 7 classes.
Determine a 95% confidence interval for proportion of all voters in favour of candidate.
You are evaluating the steps in a core process using a FMEA(Failure Modes and Effects Analysis). The scales to rate severity, occurrence, and detection have been created and agreed upon by the team. How would you use the FMEA to prioritize the c..
the stats are related to past events. every person cannot perform 100 all of the time. they will have off days. those
You own a small tea company, Sweet Leaf, NASDQ ticker symbol LEAF. You are looking at marketing costs versus benefits. Your production manager says it doesn't matter which tea you produce
What are the variables and units in this regression?- What units does the slope have?- Do you think the slope is positive or negative? Explain.
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