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Compute the Mann-Whitney U statistic for the following data. The numbers under the Group 1 and Group 2 columns are participant numbers.
A box of Teddy Grahams chocolate cookies is supposed to weigh 250 grams. There is some variation in weight from box to box. The box contents are Normally distributed with an unknown mean and a known standard deviation of 3 grams.
Find Karl Pearson's correlation coefficient between the sales and expenses from the data given below: Sales (Rs. Lakhs) 50 50 55 60 65 65 65 60 60 50 Expenses (Rs. Lakhs) 11 13 14 16 16 15 15 14 13 13?"
paul is conducting a study on the dollar value of orders placed with various suppliers. a sample of 10 orders showed
The same researcher wishes to estimate the proportion of executives who own a car phone. She wants to be 90% confident and be accurate within 5% of the true proportion. Find the minimum sample size necessary
a city planning commission is considering revamping the traffic system of the city. help them by calculating the mean
For a random sample of 12 such runners were studied the average resting heart rate was 62 bpm with a standard deviation of 9.6 bpm. In this scenario, the value of 6.2 bpm is the
several psychology students are unprepared for a surprise truefalse test with 12 questions and all of their answers are
What did the Emancipation Proclamation do? Name and list all of them?
For a normal random variable with mean 16.5 and standard deviation 0.8, find a point of the distribution such that there is a 0.85 probability that the value of the random variable will be above it.
averaging 204 pins with a standard deviation of 24.9, can one conclude at a level of significance of .01 that the new ball has improved his game?
Probability of Winning the Lottery: Because the California Fantasy 5 lottery is won by selecting the correct five numbers
a population has a known standard deviation of 25. a simple random sample of 49 items is taken from the selected
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