Mathematics, 26.11.2019 23:31 mrmendrala
(i) state the name of relevant hypothesis test: – one sample z-test for proportion – one sample t-test for mean – matched pairs t-test for mean of difference – independent two sample t-test for difference of means – independent two sample z-test for difference of proportions
(ii) define parameter(s) of interest and state the null and alternative hypotheses.
example : to test the claim that startbucks coffee’s daily sale in twin cities is higher than that in des moines, ia, you randomly select 30 stores from each location and calculate the sample daily sales mean for each state.
answer : independent two sample t-test for difference of means. µ1: mean daily sale of startbucks coffee’s in twin cities µ2: mean daily sale of startbucks coffee’s in des moines, ia h0 : µ1 = µ2 vs h1 : µ1 > µ2
e. an experiment investigated whether cell phone use impairs drivers’ reaction times, using an sample of 64 students from the university of utah. students were randomly assigned to a cell phone group or to a control group, 32 to each. on a simulation of driving situations, a target flashed red or green at irregular periods. participants pressed a brake button as soon as they detected a red light. the control group listened to radio or audio book while they performed the simulated driving. the experiment measured each group’s mean response time over many trials.
Answers: 1
Mathematics, 21.06.2019 19:30
Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)
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Mathematics, 21.06.2019 20:00
Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap
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Mathematics, 21.06.2019 23:00
Is a square always, sometimes, or never a parallelogram
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(i) state the name of relevant hypothesis test: – one sample z-test for proportion – one sample t-t...
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