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Assume a survey item asks someone if something is very important, somewhat important, not very important, or unimportant. This is an example of what level of measurement.
Calculating measures of location and dispersion for the given set of data. A sample of 30 MBA students are asked to log the exact quantity of time they spent working on QM in the previous week.
Diagramatic representation and normal distribution. Ten members of a fraternity take a statistics course. Here are their scores on the first exam in the course.
Iq score for adults age is 25 - 45 have a bell shape distribution with the mean of 100 and the standard deviation of 15. By the empirical rule what percentage of adults is 25 - 45 has iq score bet 7
An educational study uses a simple pre-post design to assess the efficacy of a computer tutor for solving inequalities. Twelve pilot students participate.
Write down the differences between "accepting" and "not rejecting" the null hypothesis. Does the normal curve ever intersect the x-axis? Why or why not?
A sample of three female health professionals has an average yearly salary of $49,765. A sample of eight male professionals has an average yearly salary of $52,165. Find out the average yearly sal
Read the passage below, and then consider following scenario. A physician is trying to decide whether to prescribe medication for cholesterol reduction in 45-year-old female patient.
Hypersexual behaviour caused by traumatic brain injury (TBI) is often treated with the drug Depo-Provera. In one clinical study, eight young male TBI patients who exhibited hypersexual behaviour wer
The number of people in a car that crosses a certain bridge is represented by the random variable X, that has a mean value μX = 2.7, and the variance σ2X = 1.2. The toll on the bridge is $3
Collective the opinions of the experts by computing the minimum, maximum, 25th percentile, 50th percentile, and 75thpercentile values.
Work out the expected value and standard deviation of the value.
Is Paul a risk avoider, a risk taker, or risk neutral? Give explanation.Compute the utility for the pay off and give a summary.
A lady sells homemade bread at 50 locations in town. She is concerned about absenteeism with the workers. Below is the number of days for a sample of 10 workers for the last 2 week pay period.
Bill and George go target shooting together. Both shoot at the target at same time. Assume Bill hits the target with prob. 0.7, George, independently, hits target with prob. 0.4.
A calculus instructor uses computer aided instruction and allows students to take the midterm exam as many times as essential until a passing grade is obtained. Following is a record of the number o
Assume that he flips the same coin the second time and again it shows heads. Now find out the probability that it is a fair coin?
Multiple choice questions based on descriptive statistics. Refer to the following data, which occurred chronologically from left to right.
Consequently, their policy is to sell 52 tickets for the flight which can only hold 50 passengers. Find out the probability that there will be the seat available for every passenger who show up?
Consider 3 trails (they might not be independent), each of which is either the success or not. Let X denotes the number of successes. Assume E[X] = 1.8
To compute a particular value of x which has a z score of -2.1.In general, what is the standard score a measure of.
Find out the range, standard deviation, and variance for the scores.
Piggy Bank would like to analyze the required sample size required to be capable to estimate the mean dollars that each card holder will spend each month.
Indicate which is the dependent variable and independent variable Point out which would be the independent variable and which would be the dependent variable in each of following.