# how much do users pay for internet access? Here are the monthly fees (in dollars) paid by a random sample of 50 users (c) Use Table A or the TI-84 to find P(X > 25.5 in) and P(19.5 < X < Custom Essay

how much do users pay for internet access? Here are the monthly fees (in dollars) paid by a random sample of 50 users (c) Use Table A or the TI-84 to find P(X > 25.5 in) and P(19.5 < X < 22.5 in) 3.+ More Normal Calculations. The number of accidents per week at a hazardous intersection varies with mean æ = 2.2 and standard deviation s = 1.4. This distribution takes only whole-number values, so it is certainly not Normal. Briefly explain what the Central Limit Theorem (CLT) states. Let be the mean number of accidents per week at the intersection during a year (52 weeksthe sample size, n=52). What is the [approximate] distribution of according to the C.L.T.? Clearly label the density curve template at each vertical marker for both and Z. n=52 Z Sampling Distribution of , n=52 What is the probability that n=52 is between 1.7 and 2.7i.e. that is within ñ0.5 of æ? Shade in and label the area corresponding to the probability of interest. Show the proper z calculation(s) and label your z-scores on the density curve above. Report z-scores to ñ0.01. Report probabilities to ñ0.0001. Find the interquartile range (IQR) for the mean number of accidents at the intersection (report to ñ0.01). 5.18 Coffee and deforestation, continued. (c) Fit and report the LSRL to the data. Use the variable names given in the problem statement. (d) Identify and clearly interpret the slope and intercept of the model. Use proper units. (e) Predict Forest lost when the coffee Price is \$1.00 per pound. (f) Identify the data point with the largest residual. What is the residual? (d) Use side-by-side or stacked bar charts to assess the possible association between parents and students smoking status. Graph the conditional distributions for Student smoking status at each level of Parental status. 18.9 Continued. Using the sample data above, test the claim that the mean amount of D-glucose in the hindgut of a cockroach is 24 mg two ways. Use a significance level of 0.05. Against the alternative Ha: æ ? 24 mg. Against the alternative Ha: æ > 24 mg.

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