D last year an oil refinery was built in the vicinity

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(d) Last year, an oil refinery was built in the vicinity of the hospital. The average of newborn baby weights the previous year was 8.4 lbs. Using the data from this week’s births, simulate a bootstrap-t distribution with 3000 resamples to test the hypothesis that baby weights are lower after the refinery started operation (use α = 0 . 02). Make sure to specify your null and alternative hypotheses, report p-values, and state your conclusions in context.
(e) Do the same hypothesis test with a t-distribution instead of a bootstrap.
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Stat 324 HW 6 October 24, 2019 2. A reporter for Time Magazine was interested in residents’ levels of worry about being the victim of crime in their neighborhood. They performed a telephone poll of 500 adult Americans, 140 from urban areas, 160 from suburban, and 200 from rural areas. The number of adults who reported worrying about being a victim of crime was urban:83, suburban: 92, and rural: 86. (a) Perform a hypothesis test at the 5% level of significance to determine if there is evidence of a difference in the proportion of urban and suburban residents who worry about being the victim of crime. (Be sure to state your hypotheses, assumptions, and show your computations.)

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