persons whose daily wages (in Draw a histogram for the following below. are given Daily wages 0-50 50 100 100 200 200 - 250 250 450 450 500 Number of 5 10 16 7 48 14 persons Also find: (1) Number of persons who gets daily wages less than or equal to 200? (ii) Number of persons whose daily wages are more than 250?
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- The following data represent net yards gained per game by American Football running backs who played during a given week of the season. Construct a stem-and-leaf display for the given data in the accompanying table. Treat the ones digit as the leaves. For any single-digit data, use a stem of 0. Construct a stem-and-leaf display for the given data. 2611377539846335577918344425553364326366844365142271116784675921192243742183241Classify the following statements as to whether they belong to the area ofdescriptive statistics or inferential statistics___________________ 1. At most 5% of SLU students are smokers.___________________ 2. Assuming that less than 20% of the Kalinga coffee beans weredestroyed by a typhoon these past months, we should expect anincrease of no more than P30 for a kilogram of coffee by the endof the year. ___________________ 3. An employee generalized that the average monthly salary of a regular employee in a certain company is P12,000. ___________________ 4. A study found out that all customers who have received a giftcertificate from a store 75% went back to the store to shop.___________________ 5. The average grade in statistics of 50 students is 83.60.Classify the following statements as to whether they belong to the area ofdescriptive statistics or inferential statistics. 1. An employee generalized that the average monthly salary of aregular employee in a certain company is P12,000.
- The management of the local zoo wants to know if all of their animal exhibits are equally popular. If there is significant evidence that some of the exhibits are not being visited frequently enough, then changes may need to take place within the zoo. A tally of visitors is taken for each of the following animals throughout the course of a week, and the results are contained in the following table. At α=0.025, determine whether there is sufficient evidence to conclude that some exhibits are less popular than others. Animal Exhibits at the Zoo Elephants Lions/Tigers Giraffes Zebras Monkeys Birds Reptiles Number of visitors 164 166 172 188 165 139 142 Copy Data Step 3 of 4 : Compute the value of the test statistic. Round any intermediate calculations to at least six decimal places, and round your final answer to three decimal places.A sample consisting of four pieces of luggage was selected from among the luggage checked at an airline counter, yielding the following data on x = weight (in pounds). x1 = 33.1, x2 = 27.2, x3 = 36.8, x4 = 30.9 Suppose that one more piece is selected and denote its weight by x5. Find all possible values of x5 such that x = sample median. (Enter your answers as a comma-separated list.)Nine laboratory equipment dealers were asked for price quotes on two similar air quality samplers. The results of the survey are given below. At α = 0.05, is it reasonable to assert that on an average, sampler manufactured by company A is less expensive than sampler manufactured by company B?Dealer 1 2 3 4 5 6 7 8 9Company A price (in $) 250 319 285 260 305 295 289 309 275Company B price (in $) 270 325 269 275 289 285 295 325 300
- Complete the following table to compare men and women using data collected at the first examination for each participant (n = 4434). Summarize your results in three to four sentences. Patient Characteristic* Men (n = 1944) Women (n = 2490) Age, years 49.89(8.7) 50.0(8.6) Systolic blood pressure, mmHg 132.9(0.43) 132.9(0.43) Hypertension 1404(72.2) 1848(74.2) Use of anti-hypertensive medication 42(2.16) 102(4.10) Current smoker 1175(60.44) 1006(40.40) Total serum cholesterol, mg/dL 233.5(4235.60) 239.6(4621.97) Serum Glucose Stoke 193(0.09) 222(0) * Mean (Standard deviation) or n (%)The table below shows 2010 census data on Ubekizakhan with the population of women and the number of births to these women by different age groups;Age of Women Number of Women Number of Children15-19 28568 522020-24 314375 1266825-29 335856 2509030-34 401619 3148935-39 388074 1343840-44 346058 227145-49 301362 78 Assuming the country’s sex ratio at birth was 82 males per 79 females, compute the following; i) General fertility rate ii) Age-specific fertility rate iii) Total fertility rate iv) Gross reproduction rate v) Plot a graph showing the age-specific fertility rate (ASFR) in Ubekizakhan and explain the variations.The management of the local zoo wants to know if all of their animal exhibits are equally popular. If there is significant evidence that some of the exhibits are not being visited frequently enough, then changes may need to take place within the zoo. A tally of visitors is taken for each of the following animals throughout the course of a week, and the results are contained in the following table. At α=0.005, determine whether there is sufficient evidence to conclude that some exhibits are less popular than others. Animal Exhibits at the Zoo Elephants Lions/Tigers Giraffes Zebras Monkeys Birds ReptilesNumber of visitors 152 175 185 144 145 171 163 Step 2 of 4 : Calculate the expected value for the number of visitors for the birds exhibit. Enter your answer as a fraction or a decimal rounded to three decimal places. Step 3 of 4: Compute the value of the test statistic. Round any calculations to at least six decimals places and round your final answer to three…
- A computer used by a 24-hour banking service is supposed to randomly assign each transaction to one of 5 memory locations. A check at the end of a day's transactions gave the counts shown in the table to each of the 5 memory locations, along with the number of reported errors. Memory Location: 1 2 3 4 5 Number of Transactions: 82 100 74 92 102 Number of Reported Errors 11 12 6 9 10 The bank manager wanted to test whether the proportion of errors in transactions assigned to each of the 5 memory locations differ. Which test would be used to properly analyze the data in this experiment? χ2 test for difference among more than two proportions χ2 test of independence McNemar test for the difference among more than two proportions McNemar test for the difference between two proportionsData collected by a price reporting agency from more than 90,000 gasoline and convenience stores throughout the U.S. showed that the average price for a liter of unleaded gasoline was $0.87. The following data show the price per liter ($) for a sample of 20 gasoline and convenience stores located in San Francisco. 0.97 0.97 1.25 0.92 0.92 1.00 0.94 0.97 1.01 0.96 0.96 0.97 0.92 1.03 1.12 0.95 0.98 0.97 0.97 0.96 (a) Use the sample data to estimate the mean price in dollars for a liter of unleaded gasoline in San Francisco. (Round your answer to three decimal places.) $ (b) Compute the sample standard deviation in dollars. (Round your answer to three decimal places.) $ (c) Compare the mean price per liter for the sample data to the national average price. What conclusions can you draw about the cost of living in San Francisco? The average price for a liter of unleaded gasoline in San Francisco is the national average. This indicates that the cost of living in San…A marketing firm wants to know if there is a difference in the best marketing strategy for new customers compared to returning customers. In order to determine the relationship between marketing strategy and customer type, the following information on number of sales generated is obtained for each group. Is there sufficient evidence at the 0.010.01 level of significance to conclude that an association exists between marketing strategy and customer type? Observed Sample of Customers Paid search Social Media Web retargeting Total New customer 167167 154154 140140 461461 Returning customer 146146 145145 164164 455455 Total 313313 299299 304304 916916 Copy Data Step 1 of 4 : Calculate the expected value for the number of sales generated by the web retargeting strategy for new customers. Round your answer to six decimal places.
