Suppose 3.141516 is estimated using 3.141529. The absolute error is (Answer must be in 6 decimal places. Example 0.123456)
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- Verify the conjecture made in the previous exercise. Round all numbers to six decimal places when necessary.A medical researcher says that less than 77% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 400 adults in that country, 73% think that healthy children should be required to be vaccinated. At α=0.05, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below.A medical researcher says that less than 77% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 200 adults in that country, 74% think that healthy children should be required to be vaccinated. At α=0.01, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below.
- A grocer finds that the cantaloupes in his store have weights with mean 0.7 kg and standard deviation 53 grams. If this is true, then 99.7% of cantaloupes will have weights between how many grams?According to a study, 58% of all males between the ages of 18 and 24 live at home. (Unmarried college students living in a dorm are counted as living at home.) Suppose that a survey is administered and 152 of 226 respondents indicated that they live at home. (1a) P(X≥152)=__________ (Round to four decimal places as needed.) (1b) Do the results from part (a) contradict the study? yes or noA police department released the numbers of calls for the different days of the week during the month of October, as shown in the table to the right. Use a 0.01significance level to test the claim that the different days of the week have the same frequencies of police calls. What is the fundamental error with this analysis? Calculate the test statistic, chi squared.
- Consider the case where the predetermined average number of bus arrivals at the Cubao Station is 6 per 15-minute period. Find the pro of at least 4 buses arriving in a 15-minute period.200 students were randomly sampled from a community college and 82 of them answered "yes" to the question "do you get enough sleep each night?" A college newspaper states that half (50%) of students get enough sleep each night. Suppose that we want to test this claim to determine whether it is accurate, and assume that the standard error is 0.0353.For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding.A random sample of 5280 permanent dwellings on an entire reservation showed that 1620 were traditional hogans.
- A humane society claims that less than 73% of households in a certain country own a pet. In a random sample of 700 households in that country, 490 say they own a pet. At α=0.01, is there enough evidence to support the society's claim? Complete parts (a) through (c) below.Since the z score for the tallest man is z= __________and the z score for the shortest man is z=___________, the tallest or shortest man had the height that was more extreme. (Round to two decimal places.)A sample of patients is tested to determine if they have any hospital borne infections. How large of a sample must be collected to be accurate within 0.02 at the 5% level of significance, if the hospital estimates the true proportion of patients infected is 0.042 p^= q^= E= z= Round to two decimal places if necessary n= Round up to the next integer