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Question: Ancient Egypt. Settlements in Egypt before the time of the pharaohs are dated by measuring the presence of forms of carbon that decay over time. The first datings of settlements in the Nagada region used hair that had been excavated 60 years earlier. Now researchers have used newer methods and more recently excavated material. Do the dates differ? Here is the conclusion about one location: "There are two dates from Site KH6. Statistically, the two dates are not significantly different. They provide a weighted average corrected date of 3715 ± 90 B.C." Explain to someone interested in ancient Egypt but not interested in statistics what "not significantly different" means.
create a line graph please include graph in excel format of the monthly average ratings for cbc for the year. note that
For the simple random sample of 40 homeowners invited to attend her town meeting, describe the sampling distribution of p = the proportion of Republicans among those invited to the meeting.
For random variables X and Y, we wish to use Y to estimate X. However, our estimate must be of the form = aY (a) Find a∗, the value of a that minimizes the mean square error e = E[(X - aY)2]
A local university administers a comprehensive examination to the recipients of a B.S. degree in Business Administration. A sample of 5 examinations are selected at random and scored. The test scores are 56, 85, 65, 86, and 93. At 98% confidence, ..
Only two doctors would make a diagnosis on patients coming into the same STD clinic for gonorrhea. The probability of the two doctors making a diagnosis of gonorrhea is (independent, dependent, synergistic, cannot tell).
A factory machine cuts metal wire into strips. The length of the strips is known to follow a normal distribution with the mean of 10 cm and variance of 9 cm2.
For this assignment you will practice using descriptive statistics to help a fitness equipment company better understand their customers.
Is this an open- or closed-form question? Explain.- Comment on the choices given to respondents.- Comment on the advertiser's claim.
Is there evidence that ALS is more common among athletes?- What kind of study is this? How does that affect the inference you made in part a?
a study was performed to investigate the relationship betwee family income and ownership of a luxury car. 16 households
If a worker is known to strongly agree with the statementMy current job brings out the most creative ideas" what is the probability that the worker is engaged?
The probability of getting a promotion and a raise is 0.25. What is the probability of getting a raise.
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