ny Markets Wants to compare the sales performance of two of her stores, Store 1 and Store 2. Though the two stores have been comparable in the past, the owner has made several improvements to Store 2 and wishes to see if the improvements have made Store 2 more popular than Store 1. Sales can vary considerably depending on the day of the week and the season of the year, so she decides to eliminate such effects by making sure to record each store's sales on the same 8 days, chosen at random. She records the sales (in dollars) for each store on these days, as shown in the table below. Day Store 1 Store 2 1 526 Difference (Store 1 - Store 2) Send data to calculator v Explanation n a 597 611 -71 - 107 Check 3 4 324 754 94 504 418 750 825 254 225 821 5 -4 716 6 109 430 7 (a) State the null hypothesis Ho and the alternative hypothesis H₁. H :O 8 414 Based on these data, can the owner conclude, at the 0.10 level of significance, that the mean daily sales of Store 2 exceeds that of Store 1? Answer this question by performing a hypothesis test regarding (which is u with a letter "d" subscript), the population mean daily sales difference between the two stores. Assume that this population of differences (Store 1 minus Store 2) is normally distributed. Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places and round your answers as specified. (If necessary, consult a list of formulas.) 716 -176-189 105 μ Ix O S P ê Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Acces B

Imagine you have some workers and some handheld computers that you can use to take inventory at a warehouse. There are diminishing returns to taking inventory. If one worker uses one computer, he can inventory 125 items per hour. Two workers sharing a computer can together inventory 175 items per hour. Three workers sharing a computer can together inventory 225 items per hour. And four or more workers sharing a computer can together inventory fewer than 235 items per hour. Computers cost $100 each and you must pay each worker $25 per hour Instructions: In parts a and b. round your answers to two decimal places in part c, enter your answer as a whole number. a. If you assign one worker per computer, what is the cost of inventorying a single item? b. What is the cost if you assign two workers per computer? What if you assign three? c. How many workers per computer should you assign if you wish to minimize the cost of inventorying a single item? workers

In 2005, we purchased some stocks. By 2010, the stocks' value has increased by 30 %. But then, during the next five years, it lost  9 % of its value from 2010. How does the stocks' value in 2015 compare to the value in 2005?   It is the same as in 2005. It is down compared to 2005. It is up compared to 2005.     And the change is   %

Describe in your own words the YRBBS to someone who does not know the system. Specifically, explain:  What is it? Who owns it? Who can usethe system? Where does the data in it come from? From whom is the data collected?

You have a bag of poker chips, containing 2 white, 1 red, and 3 blue chips. White chips are worth $5, red chips are worth $10 and blue chips are worth $20. You need $20 worth of chips in order to see someone's raise, so you take chips out of the bag one at a time, noting the color of each one as it's removed, and stop when the total value of the chips removed is at least $20. How many sequences of chip colors are possible when you do this? (A) 0 (В) 9 (С) 5 (D) 10 (E) 3 (F) 11 (G) 8 (Н) 7

The owner of a chain of mini-markets wants to compare the sales performance of two of her stores, Store 1 and Store 2. Though the two stores have been comparable in the past, the owner has made several improvements to Store 1 and wishes to see if the improvements have made Store 1 more popular than Store 2. Sales can vary considerably depending on the day of the week and the season of the year, so she decides to eliminate such effects by making sure to record each store's sales on the same 12 days, chosen at random. She records the sales (in dollars) for each store on these days, as shown in the table below. Day 1 2 3 4 5 6 7 8 9 10 11 12 Store 1 944 462 984 958 457 250 726 992 847 447 587 230 879 Store 2 699 378 928 658 374 44 149 845 917 707 519 222 877 Difference 245 84 56 300 83 101 -119 75 140 68 2 (Store 1 - Store 2) Send data to calculator Based on these data, can the owner conclude, at the 0.10 level of significance, that the mean daily sales of Store 1 exceeds that of Store 2?…

You are the marketing director for a company that manufactures bodybuilding supplements, and you are planning to run ads in Sports Illustrated and GQ Magazine. On the basis of readership data, you estimate that each ad in Sports Illustrated will be read by 600,000 people in your target group, while each ad in GQ will be read by 150,000. You would like your ads to be read by at least 12 million people in the target group, and you plan to place at least 6 ads in Sports Illustrated and at least 8 ads in GQ during the next year. Sports Illustrated quotes you $2000 per ad, while GQ quotes you $1000 per ad. How many ads should be placed in each magazine to satisfy your requirements at a minimum cost? Sports Illustrated ads GQ Magazine ads