Question

In: Statistics and Probability

Question 3 Using the t-table with  = 18 degrees of freedom and a level of significance of...

Question 3

  1. Using the t-table with  = 18 degrees of freedom and a level of significance of α=0.05, determine the critical value for the hypothesis test. (Note: Since this is a left-tailed test, the critical value will be negative). Enter your answer to three decimal places

Solutions

Expert Solution

t critical value =-1.734


Related Solutions

Question 3 Using the t-table with  = 18 degrees of freedom and a level of significance of...
Question 3 Using the t-table with  = 18 degrees of freedom and a level of significance of α=0.05, determine the critical value for the hypothesis test. (Note: Since this is a left-tailed test, the critical value will be negative). Enter your answer to three decimal places
Consider the t-distribution with 18 degrees of freedom. Use Table D to find the proportion of...
Consider the t-distribution with 18 degrees of freedom. Use Table D to find the proportion of this distribution that lies below t=−1.33 Then use excel to confirm your result. Give your answer to two decimal places. P(t < −1.33) =
Find the value of t for a t-distribution with 3 degrees of freedom such that the...
Find the value of t for a t-distribution with 3 degrees of freedom such that the area to the left of t equals 0.10. Possible Answers: A. 5.841 B. 4.541 C. -2.333 D. -1.638
Assuming the degrees of freedom equals 27, select the t value from the t table.
Assuming the degrees of freedom equals 27, select the t value from the t table.
The table t-value associated with 8 degrees of freedom and used to calculate a 99% confidence...
The table t-value associated with 8 degrees of freedom and used to calculate a 99% confidence interval is _______. Select one: a. 3.355 b. 1.860 c. 1.397 d. 2.896 Cameron Sinclair, Information Services Manager with Global Financial Service (GFS), is studying employee use of GFS email for non-business communications. He plans to use a 95% confidence interval estimate of the proportion of email messages that are non-business; he will accept a 0.05 error. Previous studies indicate that approximately 30% of...
QUESTION 1 Using the t-table found HERE find find the t critical value for: Degrees of...
QUESTION 1 Using the t-table found HERE find find the t critical value for: Degrees of Freedom = 5 Upper-tail probability = 0.10 3 points    QUESTION 2 Using the t-table found HERE find find the t critical value for: Degrees of Freedom = 11 Upper-tail probability = 0.005 3 points    QUESTION 3 Using the t-table found HERE find find the t critical value for: Degrees of Freedom = 23 Upper-tail probability = 0.05 3 points    QUESTION 4...
Find the critical value of t for a t-distribution with 30 degrees of freedom such that...
Find the critical value of t for a t-distribution with 30 degrees of freedom such that the area between -t and t is 99% A student records the repair costs for 25 randomly selected computers from a local repair shop where he works. A sample mean of $216.53 and standard deviation of $15.86 are subsequently computed. Assume that the population distribution is approximately normal and s is unknown. Determine the 98% confidence interval for the mean repair cost for all...
Consider a random variable T that has a t-distribution with k = 16 degrees of freedom....
Consider a random variable T that has a t-distribution with k = 16 degrees of freedom. What is P(T > 1.8)? Group of answer choices 0.0454 0.9546 0.2499 0.4742 0.8000
What is t distribution and how it is related to degrees of freedom? How is z...
What is t distribution and how it is related to degrees of freedom? How is z distribution different from t distribution?
As the degrees of freedom increase, the t distribution approaches the z distribution. Explain.
As the degrees of freedom increase, the t distribution approaches the z distribution. Explain.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT