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A sample of 60 women is obtained, and their heights ( in inches ) and pulse rates ( in beats per minute ) are measured. The linear correlation coefficient is 0.251 and the equation of the regression line is ^y= 18.3 + 0.930x, where x represents height. The mean of the 60 heights is 63.4 in and the mean of the 60 pulse rates is 73.9 beats per minute. Find the best predicted pulse rate of a woman who is 66 inches tall. Use a significance level of a=0.05.
The Best predicted pulse rate of a woman who is 65 in tall is ___ beats per minute.
(Type an integer or decimal rounded to two decimals as needed)
Find the mean and standard error of the sample means that is normally distributed with a mean of 10 and a standard deviation of 2 and a sample size of 25.
question 1based on a survey of 1000 adults by greenfield online and resported in a may 2009 usa today snapshot adults
Compute the Return to Risk Ratio (RRR). On the basis of the results of (A) - (C), which action should the vendor take - sell soft drinks or ice cream? Why?
Formulate both a numerical and verbal hypothesis statement regarding your research issue. Perform the five-step hypothesis test on data pertaining to your selection.
from a box containing 4 dimes and 2 nickels 3 coins are selected at random without replacement. find the probability
High levels of cockpit noise in an aircraft can damage the hearing of pilots who are exposed to this hazard for many hours. A Boeing 727 co-pilot collected 61 noise observations using a handheld sound meter.
what is the probability that the sample mean is 25 grams or more?When answering this question on an assignment, you said n=10. Im confused as to why you said this/where this came
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parts manufactured by an injection molding process are subjected to a compressive strength test. twenty samples of
the measurements of weight of 100 units of a product manufactured by two parallel processes have same mean but the
Two companies, a and b, drill wells in a rural area. Company A charges a flat fee of $3500 to drill a well regardless of its depth. Company B charges $1000 plus $12 per foot to drill a well. the depths of wells drilled in this area have a normal dist..
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