Which of these can be properly regarded as a statistical hypothesis?
a .μ = 0.2
b. z = 1.6
c. mu hat = 0.2
d. None of the options
Here the option A will be answer that is u =0.2 that will be considered as appropriate statistical hypothesis.
Which of these can be properly regarded as a statistical hypothesis? a .μ = 0.2 b....
Determine P(z 〈-2.5) 0 A) B) 0.3 0.0041399 0.0031049 0.2 C) D) 0.1 0.18630 0.0062099 μ-0 E) None of These
Can someone please answer? Research Scenario: "In 1960, the average age at which males first married was 23.3 years. It is widely assumed that people are waiting longer to get married nowadays. Test that hypothesis at the .05 level of significance given that a current-year sample of 43 men was collected in which the average age at which they were first married was 24.2 years with a standard deviation of 5.3 years." Question: What is the correct null hypothesis? Question...
Based on the sample data, the P-value for a two-sided test of the null hypothesis H0:μ=10H0:μ=10 vs. H1:μ≠10H1:μ≠10 is 0.06. Which of the following statements is correct? A. the 95% confidence interval includes the value 10 B. the 68% confidence interval includes the value 10 C. the 90% confidence interval includes the value 10 D. None of the above
Which of the following results in the null hypothesis μ=38 and alternative hypothesis μ<38? Select the correct answer below: a. A fitness center claims that the mean amount of time that a person spends at the gym per visit is at most 38 minutes. b. A fitness center claims that the mean amount of time that a person spends at the gym per visit is fewer than 38 minutes. c. A fitness center claims that the mean amount of time...
When thinking about statistical hypothesis testing, power is A. the probability that the null hypothesis is true. B. the probability that the null hypothesis is false. C. the probability a false null hypothesis will be rejected. D. the probability a true null hypothesis will be rejected.
Please label and show each step 2. Consider the following hypothesis test: Ho: μ ≤ 50 H1: μ > 50 A sample of 60 is used and the population standard deviation is 8. Use α=0.05. a. Z critical = _______________ b. Sample mean = 53.5, z calc = ______________. Do you reject Ho? c. Sample mean = 51.8, z calc = ______________. Do you reject Ho? d. The Pvalue for c is:_________________
Rejecting the null hypothesis can tell a researcher that a finding is statistically significant (for example, say there is a significant difference between students in our class and students in general) -- but this doesn’t tell us how extreme the difference really is (just that there is one). What statistical metric tells us how extreme a result is? (Or, in other words, the extent to which two population distributions do not overlap)? A. Effect size / Cohen’s D B. The...
Which of the following is normally regarded as being a good reasons to establish an ESOP? A) To enable the firm to borrow at a below-market interest rate. B) agency costs would be the same for both companies C) To help retain valued employees. D)All of the above E) none of the above
8. In a lossless Eq, λ and H. dielectric for which η,:20π, μ.-1,and E(z,t) 94πcos(wt +2z) a/m. Calculate 9. A plane wave in a lossless medium has H(z,t) 0.2 cos(ot-62)-y 2 sin(ot -6z) AV/m. Find a) The direction of wave propagating. b) εr and a. c) E(z,t). 10. The electric field component of an electromagnetic wave in free-space is given by E.z,t)Eocos(ay)sin wt -kx) V/rm (Hint: Use the identity 2 sin a cos b (sina+ b) +sin(a -b)) a) Find...
A test of the null hypothesis H0: μ = μ0 gives test statistic z = 0.45. (Round your answers to four decimal places.) (a) What is the P-value if the alternative is Ha: μ > μ0? (b) What is the P-value if the alternative is Ha: μ < μ0? (c) What is the P-value if the alternative is Ha: μ ≠ μ0?