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create a demo function to show how to estimate a gaussian mean and variance for scan-correlation by fitting a gaussian
do the health benefits of alcohol consumption depend on the type of alcohol and the amount consumed the harvard school
the amount of time spent per week in studying sta 392 is of interest a random sample of 15 students are recorded in
1 a researcher obtains a pearson correlation of r 060 for a sample of n 6 pairs of x and y scores if the researcher
part 1 old device 34 mm new device 70 mmpart 2 old device 30 mm new device 67 mmpart 3 old device 26 mm new device 78
determine the point estimate of the population proportion the margin of error for the following confidence interval and
formulas are equations that have been used so frequently in certain applications that they have become standard
zombies eat on average 5 brains per day assume the actual number of brains eaten per day follows the normal
in a sample of 12 participants a researcher estimates the 80 confidence interval for a sample with a mean of m 223 and
the serum cholesterol level of us females 20 years old or older is normally distributed with a mean of 200 mgdl
houston just had its mayoral race and the houston chronicle is studying turnout in different districts in the city they
a paint manufacturer claims its paint will last an average of 16 years assume that paint life is normally distributed
the commute time to work for a particular employee follows a continuous uniform distribution with a minimum time of 9
the average time to complete a particular task is stated to be 150 seconds which of the following 95 two-sided
a professor teaches a certain section of material using a lot of examples with sports and cars to illustrate he is
after taking a random sample of 25 fun-size candy bars some sugar-happy statistics students calculate that a 90
a sample of 100 bugs yields an average weight of 36 ounces assuming that the population standard deviation is 06 ounces
the linear regression equation was relating a regressor variable x and a response y the slope was found to be 7 with
a researcher assigns 21 adolescents to rate the likability of a person described in a vignette as having one of three
during a natural gas shortage a gas company randomly sampled residential gas meters in order to monitor daily gas
a poll is going to be taken which asks college students whether states should be allowed to conduct random drug tests
a study is being conducted on the resting heart rate of long distance runners it is believed that for a particular type
a researcher wants to compare the average times to complete two tasks twelve people were selected to be in the study
suppose we found the correlation coefficient between two variables x and y to be r 095 which of the following is most
a random sample of 25 tourists who visited hawaii this summer spent an average of 1420 on this trip with a standard