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(a) A host on a cruise ship wants to collect data on the time passengers spend at various activities on board. Which of the following best describes a random sample of passengers? The host assigns each passenger a different number. Using a random number table, he draws 90 of those numbers at random. Then, he selects the passengers assigned to the drawn numbers. Every set of 90 passengers is equally likely to be drawn using the random number table. The host forms 5 groups of passengers based on the levels of the ship that the passengers' cabins are on. Then, he selects 18 passengers at random from each group. The host selects the first 90 passengers who board because these passengers are easily accessible. (b) A city manager wants to poll residents about a park renovation. Which of the following best describes a cluster sample of residents? The city manager uses a computer program to draw 72 residents at random and selects these residents. Every set of 72 residents is equally likely to be drawn by the computer program. The city manager forms groups of 8 residents based on the streets the residents live on. Then, she selects all of the residents in 9 randomly chosen groups. The city manager takes a list of the residents and selects every $3^{\text{rd }}$ resident until 72 residents are selected. (c) A chemist at a pharmaceutical company wants to test the quality of a new batch of microscopes. Which of the following best describes a stratified sample of microscopes? The chemist forms 7 groups of microscopes based on the prices of the microscopes. Then, he selects 8 microscopes at random from each group. The chemist forms groups of 8 microscopes based on the laboratories that the microscopes are in. Then, he randomly chooses 7 groups and selects all of the microscopes in these groups. The chemist takes a list of the microscopes and selects every $7^{\text{th }}$ microscope until 56 microscopes are selected.

Assume the cholesterol levels of women can be described by a Normal model with a mean of $181\mathrm{mg}/\mathrm{dL}$ and a standard deviation of 23 . Complete parts a through e. a) Draw and label the Normal model. A. B. B. b) What percent of women do you expect to have cholesterol levels over $200\mathrm{mg}/\mathrm{dL}$ ? $\%$ (Round to two decimal places as needed.) c) What percent of women do you expect to have cholesterol levels between 140 and $150\mathrm{mg}/\mathrm{dL}$ ? $\%$ (Round to two decimal places as needed.) d) Estimate the interquartile range of cholesterol levels. $\mathrm{IQR}=\square \mathrm{mg}/\mathrm{dL}$ (Round to the nearest integer as needed.) e) Above what value are the highest $15\%$ of women's cholesterol levels? $\mathrm{mg}/\mathrm{dL}$ (Round to the nearest integer as needed.) c. $-$

The last major task Minnie completed before getting ready to prepare the firm's financial statements was the preparation of the cash budget. master budget. trial balance. internal audit.

The following information is given about an economy's agaregale demand and short-run agyregate supply curves. Using the graph belove, answer the questons that foliow. otentiat GOP (he Yp turve) is eenstant at $\$600$, as shown on the graph. The initial shart-run agoregate supply curve (ASc) is: $P=0.1Y$ the initial agpregate dernand curve $\left(A{D}_0\right)$ is: $P=105-0.075Y$ this point. a) Graph the initial thort-run aggregate supply ( $A{S}_0)$ and aggregate demand $\left(A{D}_0\right)$ eurves on the graph above. Solect the curve you want to graph from the drop-down box at the fop of the graph. his point: e) Does any type of gap exist in this scenario? If so, what type of gap and of what amount? (of you docide that no gap exists, leave the "amounf column at o.) d) Suppose that the aggregate demand equation changes to $A{D}_t=P=140-0.075Y$. Plot this curve on the graph (select the curve tabeled "New Agoregate Demand ( $A{D}_1$ )" from the drop-down box). depo-down bax at the top of the graph to plot this point. e) Does any type of gap exist in this new scenario? if so, what bpe of gap and of what amount? (ff you docide that no gap exats, leave the "amount" column at 0) Adjusted Equlibrium Point (EQ

Which one of these variables is a discrete random variable? The amount of pizza eaten by a random sample of students The time it takes a randomly selected student to complete a multiple choice exam The number of unbroken eggs in a carton The proportion of male birth rate in the world