7.1
7.1
7.2
7.3 & 7.4
7.5
100
a statistical hypothesis that contains a statment of equality
What is null hypothesis Ho
100
If the null hypothesis is true, a _________ of a hypothesis test is the probability of obtaining a sample statistics with a value as extreme or more extremet than the one determined from the sample data
What is P-value
100
The range of values for which the null hypothesis is not probable. If a test statistic falls in the region, the null hypothesis is rejected.
What is rejection region
100
a statistical test for a population mean
What is t-test for a mean
100
a statistical test for a population variance or standard deviation
What is x2-test for a variance or standard deviation
200
The complement of the null hpothesis. It is a statment that must be true if Ho is false and it contains a statment of strict inequality
What is Alternative hypothesis Ha
200
If the alternative hypothesis Ha contains the less-than inequality symbol (<)
What is left-tailed test
200
seperates the rejection region from the nonrejection region
What is critical value Zo
200
a statistical test for a population proportion p.
What is z-test for a proportion
200
Find the critical value for the indicated test for a population variance, sample size n, and level of significance a. Right-tailed test, n=27, a=0.05
What is 38.885
300
Occurs if the null hypothesis is rejected when its true
What is Type 1 error
300
If the alternative hypothesis Ha contains the greater-than inequality symbol (>)
What is right-tailed test
300
If the 1st statment in the Using Regions for a z-Test for a Mean is State the claim mathematically and verbally. Identify the null and alternative hypotheses. then whats the 2nd.
What is Specify the Level of significance.
300
In the guidelines For using the t-test for a mean the 6th step is Find the standardized test statistic. whats the 7th step
What is Interpret the decision in the context of the original claim
300
Find the critical value for the indicated test for a population variance, sample size n, and level of significance a. Two-tailed test, n=7, a=0.01
What is 0.872
400
Occurs if the null hypothesis is not rejected when it is false
What is Type 2 error
400
if the alternative hypothesis Ha contains the not-equal-to symbol.
What is two-tailed test
400
Find the P value for the indicated hypothesis test with the given standardized test statistics z. Decide whether to reject Ho for the given level of significance a. Right-tailed test, z=2.34, a=0.05
What is p=0.0096; Reject Ho
400
use a t-test to test the claim about the population mean u at the given level of significance a using the given sample statistic. For each claim, assume the population is normally distributed Claim: u=15; a=0.01 Sample statistic; (x)= 13.9, s=3.23, n=6
What is Fail to reject Ho. At the 1% significance level, there is not enough evidence to reject the claim
400
What is the 2nd step of the guidleline of Finding Critical Values for the x2-Test
What is Determine the degrees of freedom d.f =n-1
500
In a hypothesis test, the ____________ is your maximum alowable probability of making a type 1 error. It is denoted by a, the lowercase Greek letter alpha
What is Level of significance
500
The results of a recent study show that the proportion of people in the United States who use seat belts when riding in a car or truck is 81%
What is p=0.81 Ho:p=.81 (claim); Ha: p≠ 0.81
500
Find the P value for the indicated hypothesis test with the given standardized test statistics z. Decide whether to reject Ho for the given level of significance a. Two-tailed test, z= -1.56, a=0.05
What is p= 0.1188; Fail to reject Ho
500
In the guidelines For using the t-test for a mean what is the 1st step.
What is State the claim mathematicaly and verbally. Identify the null and alterantive hypothesis
500
What is the 3rd step of the guidleline of Finding Critical Values for the x2-Test
What is The critical values for the x2-distribution are found in Table 6 of appendix B. To find the critical value(s) for a. right-tailed test, b. left-tailed test, c. two-tailed test,
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