Question 23 of 25 10 10 points accepted characters

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Question 23 of 25 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 popular retail store knows that the purchase amounts by its customers is a random variable that follows a normal distribution with a mean of \$30 and a standard deviation of \$9. What is the probability that a randomly selected customer will spend \$20 or more at this store? Place your answer, rounded to 4 decimal places, in the blank. For example, 0.3456 would be a legitimate entry. .8667 Answer Key: 0.8167|0.9167 Part 9 of 9 - 1.0/ 2.0 Points Question 24 of 25 0.0/ 1.0 Points The sampling distribution of the mean will have the same mean as the original population from which the samples were drawn.
Question 25 of 25 1.0/ 1.0 Points The left half under the normal curve is slightly smaller than the right half.
Final Exam Part 1 of 16 - 2.0/ 2.0 Points Question 1 of 23 1.0/ 1.0 Points ompany operates four machines during three shifts each day. From production records, the data in the table below were collected. At the .05 level of significance test to determine if the number of breakdowns is independent of the shift.
Shift A B 1 41 20 12 2 31 11 9 3 15 17 16 C D 16 14 10 A.The number of breakdowns is dependent on the shift, because the test value 11.649 is less than the critical value of 12.592. B.The claim that the number of breakdowns is independent of the shift cannot be rejected, because the test value 11.649 is less than the critical value of 12.592. C.The number of breakdowns is dependent on the shift, because the p-value is .07. D.The number of breakdowns is independent of the shift, because the test value 12.592 is greater than the critical value of 11.649. Answer Key: B
Question 2 of 23 1.0/ 1.0 Points e data presented in the table below resulted from an experiment in which seeds of 5 different types were planted and the number of seeds that germinated within 5 weeks after planting was recorded for each seed type. At the .01 level of significance, is the proportion of seeds that germinate dependent on the seed type? Seed Type Observed Frequencies Germinated Failed to Germinate 1 31 2 57 3 87 4 52 5 10 7 33 60 44 19
Part 2 of 16 - 2.0/ 3.0 Points
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