of all 2,220,087 members of the high school class of 2019 who took the SAT, 554,665 reported their race as hispanic/latino
Q: Which statement about student art prefernces is unbiased? A.surveying the first 5 students entering…
A: Statement which is unbiased is
Q: Salaries Starting teacher salaries for upper secondary education in selected states are listed…
A:
Q: The top 15 2018 Congressional race contenders (out of 24) in NJ who raised the most money reported…
A: Given data: 7.0, 1.2, 6.4, 5.4, 2.1, 4.4, 2.9, 2.3, 1.75, 1.6, 1.5, 1.5, 1.4, 1.1, 0.8.
Q: Find the mode of the following amounts (in thousands of dollars) in checking accounts of randomly…
A: Mode=4
Q: A 2015 Gallup poll of 1,627 adults found that only 22% felt fully engaged with their mortgage…
A: Here the sample size is number of adults.
Q: Nationally, 83% of Americans have earned a high school diploma. We want to see if the proportion of…
A: We have to find sample proportion.
Q: In a survey of 3229 adults aged 57 through 85 years, it was found that 87.5% of them used at least…
A:
Q: Forty new employees hired at the same time are randomly divided into two groups. One group receives…
A: Experimental Study: If some treatments are applied on the individuals in order to observe the…
Q: A survey of enrollment at 35 community colleges across the United States yielded the following…
A:
Q: 47%0 0f these applicants were men. a.) Among the 594 applicants, how many of them were men? (round…
A: We have given that, Sample size (n) = 594 and 47 % of these applicants who are men Then, We will…
Q: A mayor running for re-election claims that during his term, average municipal taxes have fallen by…
A: Probability : Probability is a field of mathematics that deals with numerical descriptions of how…
Q: A poling organization contacts 1138 teenagers who are 13 to 17 years of age and live in the United…
A:
Q: If there are 48 data points in a set of data, what is the number of degrees of freedom? (Enter an…
A: Given thatNumber of data points in set of data (n) = 48We know thatDegrees of freedom (df) = (n1)
Q: Ten countries were randomly selected from the list of 129 countries in the Country. The countries…
A: Given Information : Ten countries were randomly selected from the list of 129 countries in the…
Q: Forty-seven fast-food restaurant hourly employees were surveyed to see how many hours they worked…
A: n=4787 % confidence interval
Q: According to a poll conducted by the Gallup Corporation in March 2011, the metropolitan areas with…
A: Given, according to a poll conducted by the Gallup Corporation in March 2011, themetropolitan areas…
Q: 3. A consumer testing agency wants to evaluate the claim made by a manufacturer of discount tires.…
A: Null hypothesis: Null hypothesis is the statement about parameter of population. Alternative…
Q: The following table shows the number of active military personnel in 2009, by reglon (including the…
A: Step 1 Given Information:
Q: A mayor running for re-election claims that during his term, average municipal taxes have fallen by…
A: Null Hypothesis is a neutral statement about the parameter or distribution. Alternative hypothesis…
Q: A mayor running for re-election claims that during his term, average municipal taxes have fallen by…
A: The population standard deviation is 35.
Q: Of the 1.6 million computer systems designers in the United Sates (as of 2005), 26,6% are female.…
A: a) Here, for computer system designers, The percentage of female is 26.6% So the percentage of male…
Q: Test whether a majority of Kansas residents planned to set off fireworks on July 4th. In other…
A: Testing of population proportion is used here which is a binomial test that compare a proportion of…
Q: In a survey conducted by a reputable marketing agency, 258 of 1000 adults 19 years of age or older…
A: (a). C. The sample is 1000 adults of 19 years of age or older. B. The population is all adults…
Q: A random survey of enrollment at 20 community colleges across the United States yielded the…
A: From the given information, n=20.
Q: In a survey of 3186 adults aged 57 through 85 years, it was found that 85.9% of them used at least…
A: Given : In a survey 0f 3186 adults aged 57 through 85 years, it was found that 85.9 % of them…
Q: A mayor running for re-election claims that during his term, average municipal taxes have fallen by…
A:
Q: In a survey of 3315 adults aged 57 through 85 years, it was found that 82.4% of them used at least…
A: We have given that n=3315 p=at least one prescription medication=82.4%
Q: A random survey of enrollment at 20 community colleges across the United States yielded the…
A: Given data…
Q: In research, it is not practical to include all members of a population. Is this true or false
A: Given statement: In research, it is not practical to include all members of a population.
Q: A survey of enrollment at 35 community colleges across the United States yielded the following…
A: 6414; 1550; 2109; 9350; 21828; 4300; 5944; 5722; 2825; 2044; 5481; 5200; 5853; 2750; 10012; 6357;…
Q: Below is a table from the US Bureau of Labor Statistics' Current Population Survey Employment Status…
A: The χ2 test of independence shows the relationship between 2 categorical variables.
Q: From December 11–15, 2019, Quinnipiac University conducted a survey of 1,390 registered voters from…
A: Identification of the population and the sample
Q: (e) Construct and interpret a 95% confidence interval for the population proportion of adults 19…
A: From the provided information, Sample size (n) = 1000 From which 252 confessed to be bringing and…
Q: A random survey of enrollment at 2020 community colleges across the United States yielded the…
A: Disclaimer: Since you have posted a question with multiple sub-parts, we will solve only the first…
Q: A polling organization contacts 1581 teenagers who are 16 to 19 years of age and live in North…
A: Population: It is nothing but it is interest of set of all the objects or individual’s interest.…
Q: A nonprofit organization conducted a survey of 2040 metropolitan-area teachers regarding their…
A: Let L be the event representing the problem of lack of parental support. Let A be the event…
Q: A mayor running for re-election claims that during his term, average municipal taxes have fallen by…
A: Given data…
Q: k, on average. The following data was obtained: 30, 44, 34, 35, 40, 34, 39, 33, 40, 31, 37, 30, 37,…
A: 30, 30, 44, 34, 35, 40, 34, 39, 33, 40, 31, 37, 30, 37, 35, 33, 32, 41, 51, 31, 37, 34, 33, 36, 39,…
Q: Credit card debt: In a survey of 1118 U.S. adults conducted in 2012 by the Financial Industry…
A: Given,n=1118x=810p^=xn =8101118=0.7251-p^=1-0.725=0.275α=1-0.90=0.1α2=0.05Z0.05=1.645
of all 2,220,087 members of the high school class of 2019 who took the SAT, 554,665 reported their race as hispanic/latino
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- A polling organization contacts 1620 undergraduates who attend a university and live in the United States and asks whether or not they had spent more than $200 on food in the last month. What is the population in the study? A. Undergraduates who attend a university. B. Undergraduates who attend a university and live in the United States. OC. Undergraduates who attend a university and live in the United States and have spent more than $200 on food. D. Undergraduates who attend a university and have spent more than $200 on food. What is the sample in the study? OA. Undergraduates who attend a university and live in the United States. B. The 1620 undergraduates who attend a university and live in the United States. OC. The 1620 undergraduates who attend a university and have spent more than $200 on food. OD. Undergraduates who attend a university.A mayor running for re-election claims that during his term, average municipal taxes have fallen by $125. A conscientious statistician wants to test this claim. He surveys 37 of his neighbors and finds that their taxes decreased (in dollars) as follows: 121, 139, 121, 125, 118, 145, 141, 91, 127, 136, 144, 154, 131, 139, 139, 125, 108, 130, 125, 106, 137, 148, 154, 134, 137, 112, 96, 114, 114, 126, 133, 129, 94, 129, 148, 163, 121 The statistician assumes a population standard deviation of $19. Do you think the statistician should reject the mayor's claim? Why or why not? Step 1: State the hypothesis. ?v= Step 2: Determine the Features of the Distribution of Point Estimates Using the Central Limit Theorem. By the Central Limit Theorem, we know that the point estimates are [Select an answer with distribution mean and distribution standard deviation Step 3: Assuming the Claim is True, Find the Probability of Obtaining the Point Estimate. P? ✓ ? ♥ = P(? ? ♥Ten countries were randomly selected from the list of 129 countries in theCountry. The countries are compared with respect to their gross nationalproduct per capita, an indicator of the average income level of each country.Researchers have found that people in countries with higher income levelstend to live longer than do people in countries with lower income levels.In addition, birth rates tend to be higher in countries with lower incomes,with birth rates declining as countries become better off economically. a. Use this data to determine the Spearman rank correlation of GNP with(i) life expectation, and (ii) the birth rate. b. Test to determine whether the correlation of ranks is statisticallysignificant at the 0.05 level of significance.
- Please helpTo count whale populations, the "capture" is done by means of a photograph, and the "tagging" is done by identifying each each captured whale through their unique individual pigmentation and markings. To estimate the population of gray whales in a region of the Pacific between Northern California and Southeast Alaska, 121 gray whales were "captured" and "tagged" in 2007. In 2008, 172 whales were "recaptured". Of these, 76 had been "tagged" in the 2007 survey. Based on these figures, estimate the population of gray whales in the region. There were approximately Answer gray whales in the region.The following table shows the number of active military personnel in 2009, by region (including the District of Columbia). Pacific 229,634 Mountain 89,816 West South Central 177,336 West North Central 64,564 East North Central 26,384 East South Central 68,440 South Atlantic 376,034 Middle Atlantic 41,441 New England 8,579 Source: U.S. Census Bureau, Statistical Abstract of the United States: 2012, Table 508 (data) and U.S. Census Bureau, Census Regions and Divisions of the United States (regions). Calculate the mean and standard deviation for the population. Now take 10 samples of size 3 from the population. Use either simple random sampling or systematic sampling with the help of the table of random numbers in Appendix A. Calculate the mean for each sample. Once you have calculated the mean for each sample, calculate the mean of means (i.e., add up your 10 sample means and divide by 10). How does this mean compare with the mean for all…
- A survey of enrollment at 35 community colleges across the United States yielded the following figures†. 6414; 1550; 2109; 9350; 21828; 4300; 5944; 5722; 2825; 2044; 5481; 5200; 5853; 2750; 10012; 6357; 27000; 9414; 7681; 3200; 17500; 9200; 7380; 18314; 6557; 13713; 17768; 7493; 2771; 2861; 1263; 7285; 28165; 5080; 11622 A school with an enrollment of 22,900 would be how many standard deviations away from the mean? (Round your answer to two decimal places.)1250 were surveyed, 911 drank alcohol or used illegal drugs, 425 drank alcohol only. How many drank alcohol and used illegal drugs, but did not smoke cigarettes?Due to the popularity of instant messaging and social networking, informal elements such as emoticons (e.g., the symbol “:)” to represent a smile) and abbreviations (e.g., “LOL” for “laughing out loud”) have worked their way into teenagers’ school writing assignments. A Pew Internet and American Life Project (Apr. 2008) survey interviewed 700 randomly selected U.S. teenagers by telephone on their writing habits. Overall, 448 of the teenagers admitted using at least one informal element in school writing assignments. Recall that in a random sample of 700 teenagers, 448 admitted to using at least one informal element in school writing assignments. [Note: Emoticons, such as using the symbol “:)” to represent a smile, and abbreviations, such as writing “LOL” for “laughing out loud,” are considered informal elements.] Is there evidence to indicate that less than 65% of all U.S. teenagers have used at least one informal element in school writing assignments? Test the relevant hypotheses…
- A mayor running for re-election claims that during his term, average municipal taxes have fallen by $150. A conscientious statistician wants to test this claim. She surveys 45 of her neighbors and finds that their taxes decreased (in dollars) as follows: 149, 135, 147, 147, 160, 146, 165, 144, 142, 159, 138, 185, 143, 164, 143, 154, 163, 151, 171, 156, 133, 145, 180, 172, 166, 167, 149, 144, 154, 172, 138, 168, 179, 151, 131, 165, 114, 140, 162, 151, 136, 152, 157, 154, 136 The statistician assumes a population standard deviation of $13. Do you think the statistician should reject the mayor's claim? Why or why not? Step 1: State the hypothesis. ? Step 2: Determine the Features of the Distribution of Point Estimates Using the Central Limit Theorem. By the Central Limit Theorem, we know that the point estimates are [Select an answer distribution mean with and distribution standard deviation Step 3: Assuming the Claim is True, Find the Probability of Obtaining the Point Estimate. P? ✓ ? ✓…The annual salary for a sample of U.S. governors in 2017 are as follows: $120395, $177467, $130273, $139339, $177412, $99636, $150000, $159300, $123427, $108167, $149730, $110834, $105000, $142265, $148886, $98600, $106078, $109470, $160135, $175000, $150000, $105000. 1. Find the mean and the standard deviation for the sample of annual salaries. 2. What is the associated t - score for a 99% confidence level? 3. What is the margin of error for a confidence level of 99%? 4. Find a 99% confidence interval for the mean salary of U.S. governors in 2017. Assume the data is normally distributed.A random survey of enrollment at 2020 community colleges across the United States yielded the following figures: 21,912; 2,160; 9,414; 7,681; 3,200; 17,500; 9,200; 7,380; 18,314; 6,557; 13,713; 17,768; 7,493; 2,771; 2,861; 1,263; 7,285; 28,165; 5,080; 11,710. (A) Assume the underlying population is normal. i.) xˉ= ii.) sx= iii.) n= iv.) n−1= (B.) Construct a 97%97% confidence interval for the population mean enrollment at community colleges in the United States. Enter your answer in interval notation.Round your answer to the nearest integer.Do not round any intermediate calculations.