Complex numbers should be in the form a bi where a

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Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly statedvalues. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not. A medical doctor wishes to test the claim that the standard deviation of the systolic blood pressure of deep sea divers is less than 450. To do so, she selected a random sample of 20 divers and found s = 432. Assuming that the systolic blood pressures of deep sea divers are normally distributed, if the doctor wanted to test her research hypothesis at the .01 level of significance, what is the critical value? Place your answer, rounded to 3 decimal places, in the blank. For example, 4.567 would be a legitimate entry. 7.633
Question 17 of 201.0/ 1.0 PointsAccepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation). NOTE:For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly statedvalues. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not. The CEO of a software company is committed to expanding the proportion of highly qualified women in the organization’s staff of salespersons. He believes that the proportion of women in similar sales positions across the country is less than 45%. Hoping to find support for his belief, he directs you to test H0: p .45 vs H1: p < .45.In doing so, you collect a random sample of 50 salespersons employed by his company, which isthought to be representative of sales staffs of competing organizations in the industry. The collected random sample of size 50 showed that only 18 were women.Compute the test value that you would use in conducting this test. Place your answer, rounded to3 decimal places, in the blank. For example, -2.345 would be a legitimate entry.
Part 3 of 3 - 3.0/ 3.0 PointsQuestion 18 of 201.0/ 1.0 PointsA low p–value provides evidence for accepting the null hypothesis and rejecting the alternative.
Question 19 of 201.0/ 1.0 PointsThe smaller the p–value, the more evidence there is in favor of the alternative hypothesis.
Question 20 of 201.0/ 1.0 PointsIf a null hypothesis about a population mean is rejected at the 0.025 level of significance, then it must also be rejected at the 0.01 level.