ADMS 2320 Study Guide - Standard Deviation

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greenbat668

27 Apr 2014

School

York University

Department

Administrative Studies

Course

ADMS 2320

Professor

Michael Rochon

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Document Summary

:1h m < 75 if the value of the test statistic equals 2. 42, then the p value is: 0. 5078, 2. 420, 0. 9922, 0. 0078. For a two tail test, the null hypothesis will be rejected at the 0. 05 level of significance if the value of the standardized test statistic is: a: greater than 1. 96 smaller than 1. 96 c. d. smaller than 1. 645. Then for which of the following a values do we also reject the null hypothesis: 0. 06, 0. 04, 0. 03, 0. 02. The critical values z a or z a. b: power of the test d. Using the confidence interval when conducting a two tail test for the population mean m we do not reject the null hypothesis if the hypothesized value for m : a. b. c. d. Introduction to hypothesis testing a type i error is committed a: a type ii error is committed c, a one tail test should be used instead of a two tail test.

Related Questions

Choose the best answer.

Suppose you collect a sample that has a mean of 37 with a 99% confidence interval of [32,42], and you are interested in the hypothesis test below at the α=0.05 level.

H0: μ=43

Ha: μ≠43

a) You should ask for more information because the sample size and standard deviation are needed for a hypothesis test of this kind.

b) You should fail to reject the null hypothesis because the p-value is greater than 0.05.

c) You should ask for more information because the confidence interval does not match the αα level.

d) You should reject the null hypothesis because the p-value is less than 0.05.

coffeegoat329

(a) In testing hypotheses, which of the following would be strong evidence against the null hypothesis?

A. Obtaining data with a small P-value.

B. Obtaining data with a large P-value.

C. Using a small level of line significance.

D. Using a a large level of significance.

(b) The P-value of a test of a null hypothesis is

A. The probability of the null hypothesis is true.

B. The probability, assuming the null hypothesis is false, that the test statistic will take a value at least as extreme as that actually observed.

C. The probability, assuming the null hypothesis is true, that the test statistic will take a value at least as extreme as that actually observed.

D. The probability of the null hypothesis is false.

A. 0.05

B. the probability of observing the data you actually obtained

C. a statement of ''no effect'' or '' no difference''.

D. a statement that the data are 0.

viridianweasel783

A sample of 36 observations is selected from a normal population. The sample mean is 12, and the population standard deviation is 3. Conduct the following test of hypothesis using the 0.01 significance level: H0: μ ≤ 10 H1: μ > 10

a. Is this a one- or two-tailed test?

b. What is the decision rule, Reject H0 when Z > 2.33 or when Z <= 2.33 ?

c. What is the value of the test statistic? (Round the final answer to 1 decimal place.)

d. What is your decision regarding H0? (Reject or Accept) ?

e. What is the p-value, one, zero, or close to zero ?

amberwalrus562

ADMS 2320 Study Guide - Standard Deviation

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