Mathematics, 29.11.2019 03:31, ezzyandrade7
Arevenue department is under orders to reduce the time small business owners spend filling outpension form abc-5500. previously the average time spent on the form was 5.7 hours. in orde r to test whether the time to fill out the form has been reduced, a sample of 86 small business owners who annually complete the form was randomly chosen, and their completion times recorded. the mean completion time for abc -5500 form was 5.5 hours with a standard deviation of 2.3 hours. in order to test that the time to complete the form has been reduced, state the appropriate null and alternative hypotheses. calculate the test statistic.
Answers: 3
represent the mean completion time for ABC -5500 form for the sample
represent the standard deviation for the sample
sample size
represent the value that we want to test
represent the significance level for the hypothesis test.
represent the p value for the test (variable of interest)
(1)
we see that 
so we can conclude that we FAIL to reject the null hypothesis, and the the actual mean completion time for ABC -5500 is not significantly lower than 5.7, the previous average.
Other questions on the subject: Mathematics
Mathematics, 21.06.2019 16:30, jrfranckowiak
You are making a blueprint of your bedroom and you plan to use a scale factor of 18 . the actual width of your room is 14 feet and the actual length of your room is 16 feet. determine the width and length of your room on the blueprint. on the blueprint, your room will have a width of feet and a length of feet.
Answers: 2
Mathematics, 21.06.2019 21:30, gonzalezashley152
In a test for esp (extrasensory perception), the experimenter looks at cards that are hidden from the subject. each card contains either a star, a circle, a wave, a cross or a square.(five shapes) as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. when the esp study described above discovers a subject whose performance appears to be better than guessing, the study continues at greater length. the experimenter looks at many cards bearing one of five shapes (star, square, circle, wave, and cross) in an order determined by random numbers. the subject cannot see the experimenter as he looks at each card in turn, in order to avoid any possible nonverbal clues. the answers of a subject who does not have esp should be independent observations, each with probability 1/5 of success. we record 1000 attempts. which of the following assumptions must be met in order to solve this problem? it's reasonable to assume normality 0.8(1000), 0.2(1000)%30 approximately normal 0.8(1000), 0.2(1000)% 10 approximately normal srs it is reasonable to assume the total number of cards is over 10,000 it is reasonable to assume the total number of cards is over 1000
Answers: 1
Do you know the correct answer?
Arevenue department is under orders to reduce the time small business owners spend filling outpensio...
Questions in other subjects:
Biology, 07.10.2019 04:00
English, 07.10.2019 04:00
Mathematics, 07.10.2019 04:00
