p(1-P) n Formulas: np; √np(1 - p); Here is the quick link to the scientific calculator , and from there, you may navigate to any online statistics calculators using the "Content" tab on the upper-left-hand side. ; A Food Marketing Institute found that 38% of households spend more than $125 a week on groceries. Assume the population proportion is 0.38 and a simple random sample of 130 households is selected from the population. Please answer the following questions, and show your answers to 4 decimal places if possible. a. What is the distribution of p? - N( b. What is the probability that the sample proportion of households spending more than $125 a week is more than 0.37? c. What is the probability that the sample proportion of households spending more than $125 a week is between 0.4 and 0.43?

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