Pay your taxes: According to the Internal Revenue Service, the proportion of federal tax returns for which no tax was paid was p = 0.326. As part of a tax audit, tax officials draw a simple random sample of n = 130 tax returns. Use the TI-84 Plus calculator as needed. Part 1 of 4 (a) What is the probability that the sample proportion of tax returns for which no tax was paid is less than 0.28? Round the answer to at least four decimal places. The probability that the sample proportion of tax returns for which no tax was paid is less than 0.28 is Part 2 of 4 X S (b) What is the probability that the sample proportion of tax returns for which no tax was paid is between 0.35 and 0.42? Round the answer to at least four decimal places. The probability that the sample proportion of tax returns for which no tax was paid is between 0.35 and 0.42 is X
Pay your taxes: According to the Internal Revenue Service, the proportion of federal tax returns for which no tax was paid was p = 0.326. As part of a tax audit, tax officials draw a simple random sample of n = 130 tax returns. Use the TI-84 Plus calculator as needed. Part 1 of 4 (a) What is the probability that the sample proportion of tax returns for which no tax was paid is less than 0.28? Round the answer to at least four decimal places. The probability that the sample proportion of tax returns for which no tax was paid is less than 0.28 is Part 2 of 4 X S (b) What is the probability that the sample proportion of tax returns for which no tax was paid is between 0.35 and 0.42? Round the answer to at least four decimal places. The probability that the sample proportion of tax returns for which no tax was paid is between 0.35 and 0.42 is X
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 50E: Flexible Work Hours In a recent survey, people were asked whether they would prefer to work flexible...
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Use Ti- 84
Part 4: less than or greater than
would or would not
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Step 1: Determine the given variables.
VIEWStep 2: Idenify the sampling distribution.
VIEWStep 3: Find the probability that phat is less than 0.28
VIEWStep 4: Find the probability that phat is between 0.35 and 0.42
VIEWStep 5: Find the probability that phat is greater than 0.31
VIEWStep 6: Identify the given probability is unusual or not.
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