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A car salesmen claims that a particular make of a car would give a mean mileage of greater than 20mpg. If I ran 10 cars on one gallon of gas each and came up with 10 different results, what statistical formula would I use to support the salesmen claim?
from past experience it is known that 90 of one-year old children can distinguish their mothers voice from the voice of
A mean score of 600 and a standard deviation of 100. What credit score defines the top five percent of scores. Within what range would 85% of credit score fall.
a presidential candidate plans to begin her campaign by visiting the capitals in 4 of 47 states. what is the
a. What are the values of the design parameters, t, k, b, r? b. What is the value of l for this design? c. Is the incomplete block design balanced? Justify your answer.
Construct a scatter plot for the data. Does the relationship appear to be linear and state appropriate null and alternate hypotheses with regard to correlation.
HPH 7300: Biostatistics I Homework: t-tests. Mean, standard deviation, minimum and maximum level of happiness for each group, along with the grand mean of all participants combined. State both the null and alternative hypotheses for the research que..
FCS 681 Research Methods What is the independent variable and what is the treatment that the researcher will use to manipulate that variable - What is the dependent variable in this study?
the number of customers per day at a sales counter x has been observed for a long period of time and found to have mean
according to the centers for medicare amp medicaid services 16 of nursing homes received five stars in overall ratings
We are interested in a 95% confidence interval for the population mean score. The margin of error associated with the confidence interval is?
Suppose that the probability that the student knows the answer to the question is 0.80 and the probability that the student guesses is 0.20. What is the probability that the fixed question is answered correctly?
You want to estimate today's mean temperature, so you make a series of measurements (taken as a sample) throughout the day. The mean of these measurements is 63 degrees Fahrenheit, and their standard deviation is 3.4 degrees Fahrenheit.
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