45. If a sign test is applied, what is the null hypothesis for a two-tailed test?...
Determine a left-tailed, right-tailed, or two-tailed test from a given null and alternative hypothesis. David hypothesize that the average age of the population of Wyoming is less than 45 years. David records a sample mean equal to 42 and states the hypothesis as = 45 vs < 45. Select the best description for this type of test. a.) Two-tailed test b.) Left-tailed test c.) Upper-tailed test d.) Right-tailed test
In a two tailed (non-directional) t-test, if the null hypothesis is true, what is the t value ? 0? 10? -2? or not equal to 0?
A null and alternative hypothesis are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. Ho: ơ 8.2 Ha : σ> 8.2 What type of test is being conducted in this problem? OA. ° C. Left-tailed test Two-tailed test B. Right-tailed test
The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. What parameter is being tested? Ho 0 = 8 H: o > 8 What type of test is being conducted in this problem? Right-tailed test Left-tailed test Two-tailed test What parameter is being tested? OOO Population standard deviation Population mean Population proportion
All things being equal, when we have a two-tailed Alternative Hypothesis test it is easier to reject the Null Hypothesis (when compared to a one-tailed test). True False
The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed and the parameter that is being tested. Ho = 9.4 H, #94 O A. Right-tailed, OB. Two-tailed OC. Left-tailed OD Two-tailed,
Write the null and alternative hypotheses. Determine whether the hypothesis test is left -tailed, right- tailed, or two-tailed and the parameter that is being tested. The standard deviation of the average repair bill is generally $35. A researcher believes it is greater than that now. a. Null Hypothesis: b. Alternative Hypothesis: c. Parameter: d. Type of test:
Write the null and alternative hypotheses. Determine whether the hypothesis test is left -tailed, right-tailed, or two-tailed and the parameter that is being tested. The mean age of lawyers in New York is believed to be 53.4 years. A researcher thinks the average is different now. a. Null Hypothesis: b. Alternative Hypothesis: c. Parameter: d. Type of test:
The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed. What parameter is being tested? H0: μ = 9 H1: μ > 9 What type of test is being conducted in this problem? Left-tailed test Right-tailed test Two-tailed test What parameter is being tested? A )POPULATION MEAN B) POPULATION STANDARD DEVIATION C) POPULATION PORPORTION