# Accepted characters numbers decimal point markers

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Question 17 of 20 1.0/ 1.0 Points Accepted 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 stated values. 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.
Part 3 of 3 - 3.0/ 3.0 Points Question 18 of 20 1.0/ 1.0 Points A low pvalue provides evidence for accepting the null hypothesis and rejecting the alternative.
Question 19 of 20 1.0/ 1.0 Points Using the confidence interval when conducting a two-tailed test for the population proportion p, we reject the null hypothesis if the hypothesized value for p falls inside the confidence interval.
Question 20 of 20 1.0/ 1.0 Points The p-value of a test is the smallest level of significance at which the null hypothesis can be rejected.