Question

Answer all parts and show a work

Fishermen and their families are believed to have higher levels of mercury due to greater exposure and consumption of mercury than non-fishermen. Due to the potential health risks associated with the dietary consumption of mercury, a study was conducted to examine mercury levels in fishermen and in a control group of non-fishermen in a seaside community The partial dataset provided below represents the first few lines of data for this study, which involved 196 fishermen and 189 non-fishermen that had agreed to participate in the study. Total Parts of Fish No. of Meals Residence Height Weight Using Fish Consumed During Mercury Fisherman Age (Yes/No) ears)(years) Time (kg) per Week 70 73 (mg/g) Muscle Tissue Only 11.435 4.484 1.094 MealsMe 45 38 28 175 173 168 Yes Whole Fish 15 None No Refer to the table above. For each of the FOUR variables listed in the spaces below, determine if the variable is a continuous random variable, a discrete random variable, or not a random variable. Provide your answers in the spaces provided. a. Residence Time: No. of Meals Using Fish per Week: Parts of Fish Consumed During Meals: Total Mercury: 1. 2. 3. 4. For the following parts of the question, Parts (b-c) please do the following: (1) Identify, in words, the statistical test that would be most appropriate for the claim being tested. (2) Provide the null and altenative hypotheses for the test you believe to be appropriate in the space provided, using proper notation and labels for all parameters when necessary b. Indicate what type of statistical test would be most appropriate to test the claim that there was a significant linear relationship between residence time (years) and total mercury (mg/g). Hypotheses Statistical Test Ho: NOTE Thi qestion catnuns on t pag NOTE* Thiion 3 Parts ( If yow bhaw mot atready done ro, ancwer Parts (a-b) on the premions nuage! c. Indicate what type of statistical test would be most appropriate to test the claim that average ry content (mg/g) varies based upon the parts of fish consumed during meals (None, Muscle Tissue Only, or Whole Fish). Statistical Test Hypotheses Ho: For the following parts of the question, Parts (d-0 please refer to the StatCrunch output. Sample n Mean Std. dev. Fishermen 196 6.557398 6.8711667 NonFishermen 189 0.21419048 0.43002292 95% confidence interval results: Difference Sample Diff. Std. Err. U. Limit L. Limit DF 6.3432075 0,49179336 196.58395 5.3733394 7.3130756 The sample data was used to construct a 95% confidence interval (CI) estimate of the difference in the mean total mercury (mg/g) of fishermen and non-fisherman. For this question, consider the first sample to be the fishermen and the second sample to be the non-fisherman. Use the StaCrunch output to provide the 95% CI, using proper notation. d. e. Based upon the results, is there evidence to suggest that the mean total mercury (mg/g) of fishermen differs from that of non-fishermen? How so? Explain the answer that you provide in one to two complete sentences. Comparisons between two seaside residents are made. Peter (a fisherman) has a mercury level of 7.25 mg/g. Sam (a non-fisherman) has a mercury level of 0.45 mg/g. Relative to the samples of the same type (i.e. fishermen or non-fishermen), who has a lower mercury level? f.

Answer 1

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