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A gas statopm sells an average of $1,000.00 per day of gas with a standard deviation of $100.00. Assuming sales are normally distributed, what is the probability that total sales for a 7 day period are $,7,700.00 or more.
We are interested in testing to see if the variance of a population is less than 7. The correct null hypothesis is:
The intensity level of an earthquake is based on the Richter scale. Using logarithms, the Richter scale measures an earthquake relative to (as a ratio of) the weakest possible tremor.
A researcher hypothesized that the variation in the car rental rates (in US$/day) at a major city airport is less than in the car rental rates down town.
Women's heights are normally distributed with mean 63.6 and standard deviation of 2.5 in. A social organization for tall people has a requirement that women must be at least 70 in tall.
Cholesterol was 186 milligrams with s = 19.0 milligrams. Construct a 95% confidence interval for the true mean cholesterol content of all such eggs.
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.
Find the probability of failure of system for any 4 hours of operation?
Muscular dystrophy is an incurable muscle-wasting disease. The most common and serious type, called DMD, is caused by a sex-linked recessive mutation. Specifically; women can be carriers but do not get the disease; a son of a carrier has probabili..
Assume duration of human pregnancies follow mound-shaped distribution with mean of 266 days and the standard deviation of 16 days.
Suppose normality is not assumed. What nonparameiric test can be used to compare total heart weight of males with left-heart disease with that of normal males?
a certain model is normally distributed, with a mean of 24 mpg and a standard deviation of 1.0 mpg. find the following: The mileage rating that upper 5% of cars achieve
According to the data from the College Entrance Examination Board, scores on the SAT-I test have a mean of 1017, and Q1 is 880.
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