Mathematics, 06.08.2021 17:20, lizdeleon248
In order to investigate the relationship between mean job tenure in years among workers who have a bachelors degree or higher and those who do not, random samples of each type of worker were taken, with the following results. The following data was recorded:
n x a
Bachelor's degree or higher 155 5.2 1.3
No degree 210 5 1.5
Required:
a. Construct the 99% confidence interval for the difference in the population means based on these data.
b. Test, at the 1% level of significance, the claim that mean job tenure among those with higher education is greater than among those without, against the default that there is no difference in the means.
c. Compute the observed significance of the test.
Answers: 1
Mathematics, 21.06.2019 14:30, torresalysabeth
Find the value of 1715β
211.though these numbers aren't quite as nice as the ones from the example or the previous part, the procedure is the same, so this is really no more difficult. give the numerator followed by the denominator, separated by a comma.
Answers: 1
Mathematics, 22.06.2019 01:00, amoore51
Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units
Answers: 3
In order to investigate the relationship between mean job tenure in years among workers who have a b...
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