As a member of a dance troupe, Anita has a costume wardrobe that consists of 2 pairs of tights (1 white pair and 1 black pair), 3-T-shirts (1 pink, 1 blue, and 1 green), and 3 scarves (1 silver, 1 gold, and 1 white). If a costume consists of either a pair of tights and a T-shirt with a scarf or a pair of tights and a T-shirt without a scarf, how many different costumes are possible? X A. 5 X B. 8 X C. 9 D. 18 ✓E. 24
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- Schedule the final exams for MATH1101, MATH1202, SE1106, SE2222, SE2224,SE2226, SE2228, and COMP3300, using the fewest number of different time slots.The following pair of classes CANNOT be in the same time slot:* MATH1101 and COMP3300* MATH1202 and COMP3300* SE2222 and SE2224* SE2222 and SE2226* MATH1101 and MATH1202* MATH1101 and SE1106* SE1106 and SE2222{Hint: You need to draw a graph representing the relations between the courses. Ifthere are no students taking both MATH1101 and COMP3300, there is not an arrowbetween MATH1101 and COMP3300.}Some brands of soda have a bottle cap with a code redeemable for free music downloads. The soda company claims that 1 in 5 bottles of soda is a winner. However based on their experience redeeming codes, a group of students is skeptical of this claim, and believes that fewer than 1 in 5 caps is a winner. A group of students bought 65 bottles of soda to investigate the company’s claim. The students found a total of 11 bottle caps were winners.Suppose it is reasonable to assume that the 65 bottles purchased by the students are a random sample of all the bottles of soda. Based on this sample is there support for the students’ belief that the proportion of winners is less than 1 in 5? Provide statistical evidence to support your answer. If the conclusion you made in part a. is incorrect, what type of error was made? Interpret the p-value from part a. in context.A medical researcher says that less than 85% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 300 adults in that country, 83% think that healthy children should be required to be vaccinated. At α=0.01, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H0 and Ha. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) A. Less than enter your response here% of adults in the country think that healthy children should be required to be vaccinated. B. The percentage of adults in the country who think that healthy children should be required to be vaccinated is not enter your response here%. C. More than enter your response here% of adults in the country think that healthy children…
- A medical researcher says that less than 86% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 300 adults in that country, 84% think that healthy children should be required to be vaccinated. At α=0.05, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H0 and Ha. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) A. Less than 8686% of adults in the country think that healthy children should be required to be vaccinated. B. The percentage of adults in the country who think that healthy children should be required to be vaccinated is not nothing%. C. nothing% of adults in the country think that healthy children should be required to be vaccinated. D. More than nothing%…A medical researcher says that less than 76% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 500 adults in that country, 73% think that healthy children should be required to be vaccinated. At α=0.01, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H0 and Ha. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) A. The percentage of adults in the country who think that healthy children should be required to be vaccinated is not nothing%. B. Less than 7676% of adults in the country think that healthy children should be required to be vaccinated. Your answer is correct. C. nothing% of adults in the country think that healthy children should be required to be vaccinated. D. More…An education researcher claims that at most 3% of working college students are employed as teachers or teaching assistants. In a random sample of 500 working college students, 4% are employed as teachers or teaching assistants. At α=0.05, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H0 and Ha. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) A. enter your response here% of working college students are employed as teachers or teaching assistants. B. At most enter your response here% of working college students are employed as teachers or teaching assistants. C. More than enter your response here% of working college students are employed as teachers or teaching assistants. D. The percentage of working college students who are…
- Chick-fil-A gets it right. Which fast-food chain fills orders most accurately at the drive-thru window? The Quick Servcie Restaurant magazine drive-thru study involved a total of 7594 visits to restaurants in the 25 largest fast-food chains in all 50 states. All visits occured during the lunch hours of 11:00 A.M. to 2:30 P.M. or during the dinner hours of 4:00 to 7:00 P.M. During each visit, the researcher ordered a maint item, a side item, and a drink. One item was left off of each order; for example, a field researcher could order a burger with no pickles. After recieving the order, all the food and drink items were checked for accuracy. ANy food or drink item recieved that was not exactly as ordered resulted in the order being classified as inaccurate. Also included the measurement of accuracy were condiments asked for, napkins, straws, and correct change. Any errors in these resulted in the order being classified as inaccurate. Chick-fil-A had the fewest inaccuracies, with only 14…An education researcher claims that at most 4% of working college students are employed as teachers or teaching assistants. In a random sample of 600 working college students, 6% are employed as teachers or teaching assistants. At α=0.05, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H0 and Ha. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) A. nothing% of working college students are employed as teachers or teaching assistants. B. More than nothing% of working college students are employed as teachers or teaching assistants. C. The percentage of working college students who are employed as teachers or teaching assistants is not nothing%. D. At most nothing% of working college students are employed as teachers or teaching assistants.…sw1asdasd
- 94. Which drink has the highest attack rate among those who did not drink it?A. MojitoB. Negroni C. SpritzD. Whiskey sour 95. Which among the following shows the correct sequence of drinks arranged according to decreasing attackrates among those who are exposed?A. Cosmopolitan – Manhattan – Root beer – NegroniB. Negroni – Root beer – Spritz – Whiskey sourC. Root beer – Margarita – Mojito – Moscow muleD. Whiskey sour – Moscow mule – Martini – CosmopolitanAn education researcher claims that at most 3% of working college students are employed as teachers or teaching assistants. In a random sample of 300 working college students, 5% are employed as teachers or teaching assistants. At α=0.01, is there enough evidence to reject the researcher's claim? Complete parts (a) through (e) below. (a) Identify the claim and state H0 and Ha. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) A. nothing% of working college students are employed as teachers or teaching assistants. B. The percentage of working college students who are employed as teachers or teaching assistants is not nothing%. C. At most nothing% of working college students are employed as teachers or teaching assistants. D. More than nothing% of working college students are employed as teachers or teaching…An investigative journalist is writing a report about the amount of sodium in snack foods. They believe name-brand snack foods have higher sodium levels than store-brand snack foods. They randomly select 8 pairs of common snack food types (purchasing a name-brand and store-brand for each type) and use a lab to determine how much sodium is in every 100 grams of snack food. Note: d=(Name-brand−Store-brand) Name-brand (in milligrams) Store-brand (in milligrams) 519 519 469 462 418 410 328 327 741 740 637 632 282 270 554 541 Assume that both of the populations are normally distributed. At the 0.10 level of significance, is there sufficient evidence to show there are higher sodium levels for name-brand snacks than store-brand snacks? Find the test statistic, t0. Round your answer to the nearest hundredth.
