Explain what we would expect to happen to our sample variance if we change from sampling...
Explain what we would expect to happen to our sample variance if we change from sampling a population with 23 – 10 m2 plots to using 23 – 20 m2 plots? Be specific.
Explain what we would expect to happen to the money supply if the Federal Reserve buys $120 billion worth of U. S. Government bonds while banks increase their discount loans by $40 billion. Be as specific as possible in your answer given the information provided.
Suppose X = GPA for TAMU students. What would happen if you sampled every student at TAMU, so that the sample size n equals the number of students at TAMU? Consider the distributions of the sample and the sampling distribution of the sample mean. Choose all of the following that are true. a) The data distribution would match the population distribution for every sample. b) The sampling distribution would be the same as the population distribution. c)The sampling distribution would...
Suppose we use iid sampling to obtain a sample of size 16 from a normal population with standard deviation, sigma = 10. What is the probability that our sample mean will be within 2 of the population mean?
1. A random sample of 25 observations was selected from a normally distributed population. The average in the sample was 84.6 with a variance of 400.a. Construct a 90% confidence interval for μ.b. Construct a 99% confidence interval for μ.c. Discuss why the 90% and 99% confidence intervals are different.d. What would you expect to happen to the confidence interval in part (a) if the sample size was increased? Be sure to explain your answer.
Question 3 3 pts In terms of sampling distributions, minimum variance means that our estimator has the lowest variability of any other estimator. O True O False Question 7 3 pts In order to calculate the p-value of a test statistic we need to know the level of alpha for our test. True O False Question 8 3 pts For a small sample hypothesis test, we need to be able to assume the population is normally distributed. O True False
1. A.Explain why the spread (variance) of a sampling distribution for estimating a mean would be smaller than the spread (variance) of the whole population. B.Discuss what happens to the shape AND spread of a sampling distribution as sample size (n) is increased. C.Explain why it is essential that the sampling distribution be normally distributed (or t-distributed) in order to do the statistical inference procedures.
From an economist's viewpoint, what would you expect to happen in the market as the number of wireless providers goes from 2 to 8? Name and explain at least 3 things.
Uncovered Interest Parity Explain the uncovered interest parity equation. (Write it and explain it). a. b. Why would we expect it to hold? l.e. what would happen if the equation does not hold? Assume the expected $/Yen exchange rate is 0.01 dollars per yen. Further assume that the US interest rate is 8% and the Japanese interest rate is 3%. According to uncovered interest parity, what would be the current S/Yen exchange rate? Show work. c. Uncovered Interest Parity Explain...
A population has a variance of 196, we take a random sample of size 15 from this population. Let Xbar be the sample mean, and let xtot be the sample sum of our sample. These are random variables. a) What is the standard deviation of this population? b) What is the varlance af Xbar? (to three decimal places) c) What is the standard deviation of Xbar? (to three decimal places) d) What is the standard deviation of Xtot? (to three...