estimate the true proportion of children under age 6 living in poverty in Massachusetts within 3% with 90% confidence? Round the intermediate calculations to three decimal places and round up your final answer to the next whole number. n= X
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- A federal report indicated that 13% of children under age 6 live in poverty in Minnesota, an increase over previous years. How large a sample is needed to estimate the true proportion of children under age 6 living in poverty in Minnesota within 1% with 90% confidence? Round the intermediate calculations to three decimal places and round up your final answer to the next whole number. n=A federal report indicated that 23% of children under age 6 live in poverty in Ohio, an increase over previous years. How large a sample is needed to estimate the true proportion of children under age 6 living in poverty in Ohio within 4% with 90% confidence? Round the intermediate calculations to three decimal places and round up your final answer to the next whole number. n=A federal report indicated that 29% of children under age 6 live in poverty in Arkansas, an increase over previous years. How large a sample is needed to estimate the true proportion of children under age 6 living in poverty in Arkansas within 3% with 90%confidence? Round the intermediate calculations to three decimal places and round up your final answer to the next whole number. n=
- A federal report indicated that 11% of children under age 6 live in poverty in Utah, an increase over previous years. How large a sample is needed to estimate the true proportion of children under age 6 living in poverty in Utah within 3% with 99% confidence? Round the intermediate calculations to three decimal places and round up your final answer to the next whole number.A federal report indicated that 58% of children under age 6 lie in poverty in Puerto Rico, an increase over previous years. How large a sample is needed to estimate the true proportion of children under age 6 living in poverty in Puerto Rico within 1% with 95% confidence? Round the intermediate calculations to three decimal places and round up your final answer to the next whole number. n=A marketing analyst wants to predict the proportion of mortages in the Oxford area that are distressed, meaning that borrowers are more than 3 months behind on payments. The analyst wants an estimate with a 95% level of confidence and an error of at most 6%? Step 1 of 2 : Assuming the analyst has no prior knowledge about the proportion, how large of a sample would be required for the analyst to make the desired estimate? Round your answer up to the next integer.
- A consumer group is interested in estimating the proportion of packages of ground beef sold at a particular store that have an actual fat content exceeding the fat content stated on the label. How many packages of ground beef should be tested to estimate this proportion to within 0.08 with 98% confidence? (Round your answer up to the next whole number.)A research center claims that 30% of adults in a certain country would travel into space on a commercial flight if they could afford it. In a random sample of 1100 adults in that country, 34% say that they would travel into space on a commercial flight if they could afford it. At α=0.05, is there enough evidence to reject the research center's claim? Complete parts (a) through (d) below. Identify the P-value. P=enter your response here (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis and (d) interpret the decision in the context of the original claim. ▼ Fail to reject Reject the null hypothesis. There ▼ is is not enough evidence to ▼ reject support the research center's claim.A consumer group is interested in estimating the proportion of packages of ground beef sold at a particular store that have an actual fat content exceeding the fat content stated on the label. How many packages of ground beef should be tested to estimate this proportion to within 0.05 with 90% confidence? (Round your answer up to the next whole number.) packages
- A sample of 323 urban adult residents of a particular state revealed 65 who favored increasing the highway speed limit from 55 to 65 mph, whereas a sample of 177 rural residents yielded 75 who favored the increase. Does this data indicate that the sentiment for increasing the speed limit is different for the two groups of residents? (a) Test H0: p1 − p2 = 0 versus Ha: p1 − p2 ≠ 0 using ? = 0.05, where p1 refers to the urban population. (Round your test statistic to two decimal places and your P-value to four decimal places.) z = P-value = State the conclusion in the problem context. Fail to reject H0. The data suggests that the sentiment for increasing the speed limit is different for the two groups of residents.Reject H0. The data suggests that the sentiment for increasing the speed limit is different for the two groups of residents. Fail to reject H0. The data does not suggest that the sentiment for increasing the speed limit is different for the two groups of…A federal report indicated that 17% of children under age 6 live in poverty in Nevada, an increase over previous years. How large a sample is needed to estimate the true proportion of children under age 6 living in poverty in Nevada within 2% with 99% confidence?For this problem, carry at least four digits after the decimal in your calculations. Answers may vary slightly due to rounding. In a marketing survey, a random sample of 726 women shoppers revealed that 638 remained loyal to their favorite supermarket during the past year (i.e., did not switch stores).
