QUESTION 1 Math the following senarios to the correct hypothesis test. A ball bearing plant believes the mean diameter o

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Question 1 Math The Following Senarios To The Correct Hypothesis Test A Ball Bearing Plant Believes The Mean Diameter O 1 (48.83 KiB) Viewed 27 times

QUESTION 1 Math the following senarios to the correct hypothesis test. A ball bearing plant believes the mean diameter of its ball bearings A. 1.Ho:u=.5 are 0.5 cm. A sample of 200 ball bearings had a mean of.53 cm and a stnadard deviation of 0.07 cm. Using alpha=.05, test to see if the 2. Hai u>.5 evidence supports that the mean diameter is greater than 0.5 cm. 3. a=.05 A ball bearing plant believes the mean diameter of its ball bearings 4.z=6.06, p-value is essentially zero. are 0.53 cm. A sample of 20 ball bearings had a mean of 50 cm and a stnadard deviation of 0.07 cm. Using alpha-.05, test to see if the 5. Reject Ho, eveldence supports Ha. evidence supports that the mean diameter is less than 0.53 cm. B. The appropriate test is not one of the listed solutions. An exit poll of 600 voters found that 52% of them support Prop A. c. 1. Ho:u=.50 Test to see if the evidence suggests that more than 50% of voters support Prop A. Use alpha-05 2. Haiu>.50 Past surveys have suggested that 53% of adults have used illegal 3. a=.05 drugs at some point in their life. A recent survey of 18 should that 9 4. z=.98, p-value-.1635 had used illegal drugs at some point in their life. Using alpha-05, test to see if the percentage has decreased over time. 5. Since p-value < a, we fail to reject Ho. D. 1. Hoiu.53 2. Hau<.53 3. a=.05 4.t= -1.917,t* = 1.729 5. Since t* <t. we fall to reject Ho. E. 1. Ho:u=.53 2. Hau<.53 3.a =.05 4.t=.2550, t* = 1.740 5. Since t*>t, we fail to reject Ho.