a family buys 6 airline tickets online. the family buys travel insurance that costs 18 per ticket. the total cost is 1,044
1 answer:
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<h3>Given</h3>
.15 of employees are managers
.25 of employees are MBAs
.60 of managers are MBAs
<h3>Find</h3>(a) proportion of employees who are managers with MBA
(b) proportion of MBAs who are managers
(c) whether MBA and manager are independent
<h3>Solution</h3>(a) Your answer of 0.60×0.15 = 0.09 is correct
(b) 0.09 of the 0.25 of employees who are MBAs are managers. .09/.25 = 0.36
(c) No. P(MBA | manager) = 0.60 ≠ P(MBA) = 0.25
_____
The only calculation necessary is the one you did for part (a). Other answers can be based directly on the given data. The chart below is unnecessary.
Answer:
We cannot determine the appropriate hypotheses to test this study because we are only given the data for the sample size and the population mean. Meanwhile, we need to know the data of the sample mean, the standard deviation and the level of significance before we can state the appropriate hypotheses for this test.
Step-by-step explanation:
Given that:
sample size n = 300
population mean μ = 35
The null hypothesis and the alternative hypothesis can be computed as follows:
Null hypothesis
Alternative hypothesis
The degree of freedom df = n -1
df = 300 - 1
df = 299