Mathematics, 22.04.2020 00:49 bridgetosanders
A survey of data base administrators is conducted. In a random sample of equation, n=150, x=63 of them were found to have over 10 years of experience. Construct 1-a=0.90 confidence interval for the population proportion p of data base administrators with over 10 years of experience.1) The sample proportion of data base administrators having over 10 years of experiences is closest toa.63 b.1.645 c.4.2 d.42 e. none of the above2) The half width of this confidence interval is closest to a.0.0033 b.0.0403 c.0.0663 d.0.0790 e. none of the above3) The left limit of this confidence interval L is closest to a.0.4990 b.0.4863 c.0.3537 d.0.3140 e. none of the above4) The right limit of this confidence interval R is closest to a.0.4990 b.0.4863 c.0.3537 d.0.3410 e. none of the above5) The conclusion is a. With 90% confidence, 0.3410 < p < 0.4863 b. With 90% confidence, 0.3537 < p < 0.4990 c. With 90% confidence, 0.3410 < p < 0.4990 d. With 90% confidence, 0.3537 < p < 0.4863 e. none of the above
Answers: 2
Mathematics, 21.06.2019 19:50
Which of the following describes the graph of y--4x-36 compared to the parent square root function? stretched by a factor of 2, reflected over the x-axis, and translated 9 units right stretched by a factor of 2, reflected over the x-axis, and translated 9 units left stretched by a factor of 2, reflected over the y-axis, and translated 9 units right stretched by a factor of 2, reflected over the y-axis, and translated 9 units left save and exit next submit
Answers: 1
Mathematics, 21.06.2019 22:30
Which of the following represents the length of a diagonal of this trapezoid?
Answers: 1
Mathematics, 22.06.2019 03:30
On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. what can you conclude? 2(0.21) = 0.42 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant. 0.21 > 0.05; the test is statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 79% of the time, so the test is not statistically significant. p = 1 - 0.21 = 0.79 > 0.05; the test is statistically significant.
Answers: 3
Mathematics, 22.06.2019 03:30
Find the value of x. also give me an explanation so i can complete it to other questions as well, : )
Answers: 2
A survey of data base administrators is conducted. In a random sample of equation, n=150, x=63 of th...
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