The null and alternative hypothesis is ,
H0 : = 7.2
Ha : < 7.2
This will be a left tailed test because the alternative hypothesis is showing a specific direction
This is the left tailed test .
Question 4 1 pts Classify the hypothesis test as left-tailed, right-tailed, or two-tailed. In 1990, the...
A hypothesis test is to be performed. Determine the wall and alternate hypothesis. In 1993, the average duration of long-distance telephone calls originating is one town 6.6 minutes. A long-distance telephone company wants to perform a hypothesis test to dete whether the average duration of long-distance phone calls has changed from the 1993 me of minutes. A. Ho: -6.6 minutes H: > 6.6 minutes B. H: -6.6 minutes HA 66 minutes C. H: -6.6 minutes 6 H D. H: H...
Conduct a full hypothesis test and determine if the given claim is supported or not supported at the 0.05 significance level. Round all amounts and standard scores to two decimal places.In 1990, the average duration of long distance telephone calls originating in one town was 9.6 minutes. A long-distance telephone company wants to perform a hypothesis test to determine whether the average duration of long-distancephone calls has changed from the 1990 mean of 9.6 minutes.The mean duration for a random...
In 1993, the average duration of long-distance telephone calls originating in one town was 7.4 minutes. A long-distance telephone company wants to perform a hypothesis test to determine whether the average duration of long-distance phone calls has changed from the 1993 mean of 7.4 minutes. O A. Ho: N = 7.4 minutes H:* 7.4 minutes B. H: * 7.4 minutes H1: = 7.4 minutes C. Hou - 7.4 minutes H:> 7.4 minutes D. H.: 4 = 7.4 minutes H: <7.4...
To solve: classify the hypothesis test is left-tailed, Right tailed, or two tailed: the mean daily animal dog food consumption at a local rescue dog is 68 pounds. the owner operator wants to know if that has increased. What formula would I use?
pense QUESTION 1 A long distance phone company wishes to estimate the mean duration of long-distance calls originating in California. A random sample of 15 long-distance calls originating in California yields the following call durations, in minutes 2 5 14 11 22 28 32 21 16 15 1 19 12 2 37 Use the data to obtain a point estimate of the mean call duration for all long-distance calls originating in California 15.3 minutes 13.8 minutes 15,8 minutes 13.9 minutes...
3 point: QUESTION 11 In 1995, the mean duration of long-distance telephone calls originating in one town was 6.5 minutes. A long- distance telephone company wants to perform a hypothesis test to determine whether the mcan duration of long-distance phone calls has changed from 1995. Determine the null and alternative hypotheses. Ho:u=6.5 vs Ha:#6.5 OH 0 = 6.5 vs Ha H< 6.5 OHO:<6.5 vs Hall> 6.5 OHO: 6.5 vs Hau - 6.5 QUESTION 12 3 points A sample of 50...
For the following hypothesis test, determine the null and alternative hypotheses. Also, classify the hypothesis test as two tailed, left tailed, or right tailed. The mean local monthly bill for cell phone users in this country was $54.97 in 2001. A hypothesis test is to be performed to determine whether last year's mean local monthly bill for cell phone users has increased from the 2001 mean of $54.97.
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:
Question 14 4 pts A researcher wants to perform a hypothesis test to determine whether the mean credit card debt for credit card holders aged 18-35 is greater than the mean credit card debt (Mo) for credit card holders aged over 35. Then the proposed hypothesis test is a Right-tailed test O Left-tailed test Two-tailed test < Previous Next
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