Jolyn, a golfer, claims that her drive distance is not equal to 222 meters, on average. several of her friends do not believe her, so she decides to do a hypothesis test, at a 5% significance level, to persuade them. she hits 11 drives. the mean distance of the sample drives is 218 meters. jolyn knows from experience that the standard deviation for her drive distance is 14 meters. h0: μ=222; ha: μ≠222 α=0.05 (significance level) what is the test statistic (z-score) of this one-mean hypothesis test, rounded to two decimal places? provide your answer below:

0.29

Step-by-step explanation:

z-score is given by the formula:

z=(μ-M)/σ where

Therefore

z=(222-218)/14≈0.29

-0.95

Step-by-step explanation:

The hypotheses were chosen, and the significance level was decided on, so the next step in hypothesis testing is to compute the test statistic. In this scenario, the sample mean distance, x¯=218. The sample the golfer uses is 11 drives, so n=11. She knows the standard deviation of the drives, σ=14. Lastly, the golfer is comparing the population mean distance to 222 meters. So, this value (found in the null and alternative hypotheses) is μ0. Now we will substitute the values into the formula to compute the test statistic:

z0=x¯−μ0σn√=218−2221411√≈−44.221≈−0.95

So, the test statistic for this hypothesis test is z0=−0.95.

step-by-step explanation:

and 90% of people marry there 7th grade love. since u have read this, u will be told good news 2night. if u don't pass this on nine comments ur worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of ur life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love u

read more on -