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A purely resistive load an AC sinusoidal signal is applied whose peak value is 10Volts and frequency is 50Hz. A purely resistive load operates at unity power factor. A digital multimeter is used to measure the magnitude of AC current and the meter showed 3.53A (R.M.S.). Compute active and reactive power consumed by the load.
q1. a chi-square test for independence with 8 degrees of freedom results in a test statistic of 18.21. usingthe
a special diet is intended to reduce the cholesterol of patients at risk of heart disease. if the diet is effective the
Suppose the survey consisted of 1,800 men and 1,200 women. Use the data to determine whether the reasons for breakup depend on gender at the 1% significance.
a test is made of h0 u 69 versus h1 u 69. a sample size n 72 is drawn and x 70. the population standard deviation is
A study is done of students commuting to a large university by bicycle. The correlation between the time spent waiting at traffic lights and total cycling time was 0.50. This means:
A wildlife biologist captures a certain species of geese in orer to weigh them. Using science, he determines that the weights are normally distributed with a mean of nine pounds and a standard deviation of 1.3 pounds.
Write a version of the question that is likely to get people to respond that smoking should be allowed at selected locations in airports.
Find the equilibrium locations if there are five firms competing over locations in the Hotelling linear city
How heavy does a box have to be in order for the box to be labeled overweight?
Suppose that a health expert has claimed that 16% of college students smoke cigarettes. To investigate this claim, researchers survey a random sample.
the decomposition approach to forecasting may be helpful when attempting to forecast a time-series. could an analogous
Over the 48 years from 1950 through 1997, the stock market has gone up in the month of January for 31 times; it has gone up for the whole year for 36 times, and it has gone up both for the year and in January for 29 times.
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