Module 10 Review Questions
... Following a dramatic drop of 500 points in the Dow Jones Industrial Average in September 1998, a poll conducted for the Associated Press found that 92% of those polled said that a year from now their family financial situation will be as good as it is today or better. The number 92% is a (a) Statist ...
... Following a dramatic drop of 500 points in the Dow Jones Industrial Average in September 1998, a poll conducted for the Associated Press found that 92% of those polled said that a year from now their family financial situation will be as good as it is today or better. The number 92% is a (a) Statist ...
L - Indico
... Beware of too few events/bin 2) Extends to n dimensions but needs lots of events for n larger than 2 or 3 3) No problem with correlated errors 4) Can calculate Smin “on line” i.e. single pass through data Σ (yi – a –bxi)2 /σ2 = [yi2] – b [xiyi] –a [yi] 5) For theory linear in params, analytic soluti ...
... Beware of too few events/bin 2) Extends to n dimensions but needs lots of events for n larger than 2 or 3 3) No problem with correlated errors 4) Can calculate Smin “on line” i.e. single pass through data Σ (yi – a –bxi)2 /σ2 = [yi2] – b [xiyi] –a [yi] 5) For theory linear in params, analytic soluti ...
Handout 3. Numerical descriptive measures (chapter
... Numerical descriptive measures (chapter 3) Graphs provide a global/qualitative description of a sample, but they are imprecise for use in statistical inferences. We use numerical measures which can be calculated for either a sample (these measures are called statistics) or a population (parameters). ...
... Numerical descriptive measures (chapter 3) Graphs provide a global/qualitative description of a sample, but they are imprecise for use in statistical inferences. We use numerical measures which can be calculated for either a sample (these measures are called statistics) or a population (parameters). ...
Solutions a) A confidence interval needs a two tailed probability. 90
... Scroll down and choose tcdf. The t-distribution required: tcdf(lower value, upper value, degrees of freedom. Here we want the probability that |t| > 2.63 so we type in: tcdf(2.63, 100000, 20) and we get .008. This gives the probability in the upper tail only. |t| > 2.63 means the probability in BOTH ...
... Scroll down and choose tcdf. The t-distribution required: tcdf(lower value, upper value, degrees of freedom. Here we want the probability that |t| > 2.63 so we type in: tcdf(2.63, 100000, 20) and we get .008. This gives the probability in the upper tail only. |t| > 2.63 means the probability in BOTH ...
Statistical methods for assessing agreement between two methods of
... (2) A change in scale of measurement does not affect the correlation, but it certainly affects the agreement. For example, we can measure subcutaneous fat by skinfold calipers. The calipers will measure two thicknesses of fat. If we were to plot calipers measurement against half-calipers measuremen ...
... (2) A change in scale of measurement does not affect the correlation, but it certainly affects the agreement. For example, we can measure subcutaneous fat by skinfold calipers. The calipers will measure two thicknesses of fat. If we were to plot calipers measurement against half-calipers measuremen ...
P(X
... develop probability distributions, for example, a new game in Vegas is developed where a fair coin is tossed three times. What is the probability distribution of the number of heads if I play this game in Vegas? Let H denote success, i.e. flipping a head P(H)=.50 Thus HC is not flipping a head, and ...
... develop probability distributions, for example, a new game in Vegas is developed where a fair coin is tossed three times. What is the probability distribution of the number of heads if I play this game in Vegas? Let H denote success, i.e. flipping a head P(H)=.50 Thus HC is not flipping a head, and ...
exp2
... statistical phenomenon, nonrandom sample from population and two imperfectly correlated measures ...
... statistical phenomenon, nonrandom sample from population and two imperfectly correlated measures ...
Sampling Techniques
... red car going when it hit the blue car?) Loaded Question: a question containing a hidden trap or implication (Have you stopped cheating on tests?) ...
... red car going when it hit the blue car?) Loaded Question: a question containing a hidden trap or implication (Have you stopped cheating on tests?) ...
Chapter 3
... A coin is tossed 6 times. From the knowledge about fair coin-tossing probabilities, p = P(H) = P(S) = 0.5. How do we express that X is a binomial r.v. in mathematical notation? What is P(X = 3)? P(X >= 3)? P(X <= 5)? Can we derive the binomial distribution? ...
... A coin is tossed 6 times. From the knowledge about fair coin-tossing probabilities, p = P(H) = P(S) = 0.5. How do we express that X is a binomial r.v. in mathematical notation? What is P(X = 3)? P(X >= 3)? P(X <= 5)? Can we derive the binomial distribution? ...
