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The capacity of an elevator is 8 people or 1232 pounds. The capacity will be exceeded if 8 people have weights with a mean greater than 1232/8=154 pounds. Suppose the people have weights that are normally distributed with a mean of 162 lb and a standard deviation of 28 lb. Find the probability that if a person is randomly selected, his weight will be greater than 154 pounds.
Determine the statistics for each gender as follows: Frequency, Counts, Mean, standard deviation, minimum, and Maximum. Graphing and Descriptive Stats in SPSS: Create a bar graph with gender (axis X) and height (axis Y).
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What is the annualized excess performance (Jensen's Alpha) of the firms that DID NOTreplace their CEO and describe the assumptions behind the classical linear regression model and the three diagnostic tests we discussed in class, the commands you w..
When we compute the sample mean and sample standard deviation for the transaction times, we find that x = 36.56 and s = 4.475.
Which alternative will yield the minimum expected cost? Construct a decision tree for this problem. Indicate the expected costs for the three decision branches.
Provide confidence intervals for the following. (assume sample size/ normality conditions hold 95%CI with meanx ¯=10,s^2 =9,n=11.
A researcher wants to predict graduate-school grade point average (GPA) from GRE verbal scores (which is what the pesky GRE is supposed to do, anyway!). She gathers data on fifty graduate students. Below are the data "high points":
State the null hypothesis. Calculate the difference between the proportions or means. Calculate the standard' error of the difference in proportions or means.
The number of employee accidents from the housekeeping department in Hotel A is related to bed height, bed size, and spinal loading. The linear regression model formula has been calculated as following: Y = 3.9+ 8.5(X1) + 2.9(X2) + 5(X3). Calculate t..
Suppose the number of days it takes you to get a flu shot
Suppose that 20% of the people in a large city have used a hospital emergency room in the past year. If a random sample of 125 people from the city is taken, approximate the probability that fewer than 22 used an emergency room in the past year. Use ..
The following data represent the monthly service fee in dollars if a customer's account falls below the minimum required $1,500 balance for a sample of 26 banks
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