Question

In: Statistics and Probability

Answer True or False to each of the following. Write the answer in the column on...

Answer True or False to each of the following. Write the answer in the column on the right.

The width of the confidence interval is the margin of error.

If a test is run and p=0.04, then we can reject H0 at ?=0.01.

If a 95% CI for the difference in two independent means is (-4.5 to 2.1), then the point estimate is -2.1.

The difference in means between two groups can be statistically significant, but not clinically significant.  

The greater the test statistic (i.e. z, t, or F), the greater the p value.

If a 95% CI for the difference in two independent means is (2.1 to 4.5), there is no statistically significant difference in means.

According to the central limit theorem, even if a population parameter is not normally distributed in a sample, the distribution of the sample means, if sufficiently large (n>30) will be normal.

Confidence intervals for relative risks and odds ratios require the usage of the natural log in their formula.

Solutions

Expert Solution

1) The width of the confidence interval is the margin of error.-false ( it is 2*margin of error)

2)If a test is run and p=0.04, then we can reject H0 at ?=0.01 -false (we reject if p value is lesss than 0.01)

3)If a 95% CI for the difference in two independent means is (-4.5 to 2.1), then the point estimate is -2.1. -false

( it should be (-4.5+2.1)/2=-1.2)

4)

The difference in means between two groups can be statistically significant, but not clinically significant. --true

5)

The greater the test statistic (i.e. z, t, or F), the greater the p value.--False

6)If a 95% CI for the difference in two independent means is (2.1 to 4.5), there is no statistically significant difference in means. -False

7)According to the central limit theorem, even if a population parameter is not normally distributed in a sample, the distribution of the sample means, if sufficiently large (n>30) will be normal. --true

8) Confidence intervals for relative risks and odds ratios require the usage of the natural log in their formula.-true

orchestra answered 2 years ago
Next > < Previous

Related Solutions

Answer True or False for each of the following. If your answer is FALSE, provide an...
Answer True or False for each of the following. If your answer is FALSE, provide an example that proves your point. If your answer is true, explain. Given a typical set of numerical data with an ODD number of values. 1. The mean is always one of the data values. 2. The median is always one of the data values 3. The mode is always one of the data values. 4. The range measures the variability of the given data...
Answer the following questions True or False. Write “True” or “False” in the blank. 1._________ The...
Answer the following questions True or False. Write “True” or “False” in the blank. 1._________ The rate constant changes if the concentrations of the reactant change. 2._________ If the concentration of a reactant changes, the rate of the reaction always changes. 3._________ The coefficients of the overall reaction tell us the order for each reactant. 4._________ The half-life for a first order reaction does not depend on the initial concentration. 5._________ If the rate of a reaction over a long...
For the following questions: write a TRUE or FALSE and then elaborate on the answer. The...
For the following questions: write a TRUE or FALSE and then elaborate on the answer. The golden-rule state for an economy with constant population but where the effective supply of labour grows at a steady rate refers to a condition such that consumption of the total population is maximised. The equation, Y = MV/P, implies that, if the velocity (V) does not change when the money supply (M) changes, then the government can raise national income (Y) by printing more...
For each of the following, write either True or False, and justify your answer. •Immigration causes...
For each of the following, write either True or False, and justify your answer. •Immigration causes wages to go down. •When there is a surplus, quantity supplied exceeds quantity demanded. This causes supply to go down, until equilibrium is reached. •The Ontario government recently slashed tuition fees by 10%. Suppose that, as a result, university enrollments rose by 10%. The elasticity of demand is therefore equal to−1. •The elasticity of supply of cars is greater than the elasticity of supply...
Answer each question by True or False. Justify your answer. (1) True or False? The set...
Answer each question by True or False. Justify your answer. (1) True or False? The set V = {p ∈ P2: p (7) = 0, p’ (7) = 0} is a subspace of P2. (2) True or False? The set of 2 by 2 matrices whose entries are either all 0 or all nonzero is a subspace of the set of all 2 by 2 matrices M2×2(R). (3) True or False? The set of all functions in C([0, 1]) such...
Determine whether each of the following statements is True or False. If True, write a proof....
Determine whether each of the following statements is True or False. If True, write a proof. If False, exhibit a counterexample. 1) If m, n are arbitrary positive integers, then any system of form x ≡ a (mod m) x ≡ b (mod n) has a solution. 2) If m, n are arbitrary positive integers and the system x ≡ a (mod m) x ≡ b (mod n)     has a solution, then the solution is unique modulo mn. Modern Abstract...
Determine whether each of the following statements is True or False. If True, write a proof....
Determine whether each of the following statements is True or False. If True, write a proof. If False, exhibit a counterexample. 1) If m, n are arbitrary positive integers, then any system of form x ≡ a (mod m) x ≡ b (mod n) has a solution. 2) If m, n are arbitrary positive integers and the system x ≡ a (mod m) x ≡ b (mod n) has a solution, then the solution is unique modulo mn. Modern Abstract...
Are the following statements true or false? In each case, prove your answer. There is a...
Are the following statements true or false? In each case, prove your answer. There is a strictly decreasing function f from N to N with f(0) = 100. Let f(x) and g(x) be strictly increasing functions from R to R. Then (f + g)(x) is also strictly increasing. Once again, let f(x) and g(x) be strictly increasing functions from R to R. Then (f×g)(x) is also strictly increasing.
Question5. Please answer the following questions as either "TRUE" or "FALSE" (Write out either “True” or...
Question5. Please answer the following questions as either "TRUE" or "FALSE" (Write out either “True” or “False”) A. A normal distribution is characterized by its mean and its degrees of freedom. ______________ B. A paired t-test is considered a nonparametric test. ______________ C. A 93% confidence interval for µ is that numerical interval constructed to contain 93% of the values of µ. ____________ D. A 94% confidence interval for a mean is narrower than a 93% confidence interval. ______________ E....
True/False. For each part, explain your answer regardless of whether it is true or false. Financial...
True/False. For each part, explain your answer regardless of whether it is true or false. Financial intermediaries are typically willing to put more effort into monitoring than individual investors.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT