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A goldfish is swimming at 2.00 cm/s toward the front wall of a rectangular aquarium. What is the apparent speed of the fish measured by an observer looking in from outside the front wall of the tank? The index of refraction of water is 1.33.
hypothesis testing we wish to test the claim that the mean body mass index bmi of men is equal to the mean bmi of
What are the assumptions of a correlated-groups t-test? What measure of effect size is used for a correlated groups t-test?
question on awards day at the end of the year jasmine has an 85 chance of winning top award in english and a 4 out of 5
The value of the z-score that is obtained for a hypothesis test is influence by several factors. Some factors influence the size of the numerator of the z-score and the factors influence of the standard error in the denominator.
The amount of income spent on housing is an important component of the cost of living. The total costs of housing for homeowners might include mortgage payments, property taxes, and utility costs (water, heat, electricity).
Find the viarance for the given data. Round your answer to one or more decimal place than the original data. 5.1,4.7,8.8,3.5,5.6.
The lifetime of a light bulb is an Exponential RV with a mean of 800 hours. Let L represent the time (in hours) that one randomly selected light bulb will burn. What is the possibility the light bulb burns for more than 1000 hours.
A firm will promote two employees out of a group of six men and three women. list the chances of this experiment if there is particular concern about gender equity.
How many circuits should the company provide to ensure that an attempted call is blocked (because all circuits are busy) with probability less than 0.01?
Analyst computes production cost per unit in each order and averages these to get $50.
A manufacturer claims that the mean lifetime,M , of its light bulbs is 51 months. The standard deviation of these lifetimes is 9 months. Ninety bulbs are selected at random, and their mean lifetime is found to be 53 months.
Employees of a local company are classified according to gender and job type. The following table summarizes the number of people in each job category.
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