Question Solved1 Answer Consider two independent random samples with the following results: \[ \begin{aligned} n_{1}=543 & n_{2}=372 \\ x_{1}=89 & x_{2}=157 \end{aligned} \] Use this data to find the \( 90 \% \) confidence interval for the true difference between the population proportions. Step 1 of 3 : Find the point estimate that should be used in constructing the confidence Consider two independent random samples with the following results: n1​=543x1​=89​n2​=372x2​=157​ Use this data to find the 90% confidence interval for the true difference between the population proportions. Step 1 of 3 : Find the point estimate that should be used in constructing the confidence interval. Round your answer to three decimal places. AnswerHow to enter your answer (opens in new window) 2 Points Keyboard Shortcuts Consider two independent random samples with the following results: n1​=543x1​=89​n2​=372x2​=157​ Use this data to find the 90% confidence interval for the true difference between the population proportions. Step 2 of 3 : Find the margin of error. Round your answer to six decimal places. AnswerHow to enter your answer (opens in new window) Keyboard Shortcuts Consider two independent random samples with the following results: n1​=543x1​=89​n2​=372x2​=157​ Use this data to find the 90% confidence interval for the true difference between the population proportions. Step 3 of 3 : Construct the 90% confidence interval. Round your answers to three decimal places. AnswerHow to enter your answer (opens in new window) 2 Points Keyboard Shortcuts Lower endpoint: Upper endpoint:

In each part below, remember to explain your answer. Don't just write down a formula. You don't have to provide decimal answers. A population consists of 6 individuals in each of 4 categories A, B, C, and D. A simple random sample of 12 individuals is chosen from the population. Find the chance that the sample contains equal numbers of individuals in the four categories. Find the chance that the sample contains 5 individuals in one category, 4 in another, 2 in a third, and 1 in the remaining category. Find the chance that the sample contains 4 individuals in each of two categories, 3 individuals in another, and 1 in the remaining category. Find the chance that the sample contains all 6 individuals in one category and equal numbers in the other three.

e following data are the response times in seconds for \( n=25 \) grade 1 students to arrange three objects by size. \( \begin{array}{lllll}5.2 & 3.8 & 5.9 & 3.7 & 3.5 \\ 4.0 & 4.0 & 4.5 & 4.9 & 4.3 \\ 2.9 & 2.4 & 2.8 & 4.4 & 4.7 \\ 3.7 & 3.9 & 4.9 & 5.2 & 4.3 \\ 4.6 & 3.5 & 4.4 & 3.6 & 5.6\end{array} \) (a) Find the mean and the standard deviation for these e following data are the response times in seconds for \( n=25 \) grade 1 students to arrange three objects by size. \( \begin{array}{lllll}5.2 & 3.8 & 5.9 & 3.7 & 3.5 \\ 4.0 & 4.0 & 4.5 & 4.9 & 4.3 \\ 2.9 & 2.4 & 2.8 & 4.4 & 4.7 \\ 3.7 & 3.9 & 4.9 & 5.2 & 4.3 \\ 4.6 & 3.5 & 4.4 & 3.6 & 5.6\end{array} \) (a) Find the mean and the standard deviation for these 25 response times. (Round your standard deviation to three decimal places.) mean sec standard deviation \( \quad \) sec (b) Order the data from smallest to largest. (Enter your answers as a comma-separated list.) (c) Find the \( z \)-scores for the smallest and largest response times. (Round your answers to two decimal places.) smallest largest Is there any reason to believe that these times are unusually large or small? Explain. Since both \( z \)-scores are greater than 3 in absolute value, the measurements are judged to be unusual.

5 Identify whether demand or supply is increasing or decreasing for the relevant product. In each case, identify the demand or supply factor causing the change from the lists below. In which direction does the demand or supply curve shift? Demand Factors number of buyers income price of another product consumer preferences consumer expectations 01:42:30 Supply Factors number of producers resource price state of technology change in nature price of related product producer expectations a. A widespread expectation by consumers of lower future incomes affects current sales flat-screen TVs. In the market for flat-screen TVs there is ain) decrease in domand The factor that causes this change is: (Click to select) v. The (Click to select) v curve shifts to the (Click to select) b. An increase in the price pesticides affects the market for rice. In the market for rice there is ain) Click to select) in (Click to select) The factor that causes this change is: (Click to select) v. The (Click to select) v curve shifts to the (Click to select). c. A drop in the number of salmon farms influences the market for salmon. In the market for salmon there is an (Click to select) in (Click to select) The factor that causes this change is: (Click to select) . The (Click to select) curve shifts to the Click to select) d. The reduction in the price of streamed movies affects the market for pre-recorded DVDS In the market for pre-recorded DVDs there is aln) (Click to select) vin (Click to select) The factor that causes this change is: (Click to select) v. The (Click to select) v curve shifts to the (Click to select)

The following data are the response times in seconds for n = 25 first graders to arrange three objects by size. 501 3.7 5.5 3.9 3.5 4.3 4.1 4.3 4.6 4.1 3.3 2.7 2.9 4.6 4.8 3.4 3.8 4.9 5.2 4.1 4.7 3.2 4.4 3.6 5.4 (a) Find the mean and the standard deviation for these 25 response times. (Round your standard deviation to three decimal places.) mean sec standard deviation sec (b) order the data from smallest to largest. Enter your answers as a comma-separated list.) (c) Find the Z-scores for the smallest and largest response times. (Round your answers to two decimal places.) smallest largest Is there any reason to believe that these times are unusually large or small? Explain. Since neither of the z-scores are greater than 3 in absolute value, the measurements are not judged to be unusually large or small. Since the z-score of the largest value is greater than 3 in absolute value, the largest value is unusually large. The smallest value is not unusual. O Since both 2-scores are greater than 3 in absolute value, the measurements are judged to be unusual. Since the Z-score of the smallest value is greater than 3 in absolute value, the smallest value is unusually small. The largest value is not unusual.

(1 point) Use the given graph of the function f to find the following limits. If a limit does not exist, type "DNE". UP 1.0 1. lim f(x) = DNE X-2 2. lim f(x) = DNE 3. lim f(x) = x+2 DNE 4. lim f(x) = -1 5. f(0) = -1

4.3 The following data are the response times in seconds for n = 25 Grade 1 students to arrange three objects by size: 5.2 3.8 5.7 3.9 3.7 4.2 4.1 4.7 4.3 3.1 2.5 3.0 4.4 4.8 3.6 3.9 4.8 5.3 4.2 4.7 3.3 4.2 3.8 5.4 a. Find the mean and the standard deviation for these 25 response times. Given that { x = 454.810 (4 marks) b. Order the data from smallest to largest. (2 marks) c. Find the Z-scores for the smallest and largest response times. Is there any reason to believe that these times are unusually large or small? Explain. (4 marks)