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Additional questions assess when a confidence interval for a population mean cannot be constructed, interpret regression outcomes relating GPA and salary, and reason about conditions for mean profit exceeding median profit. The set also includes probability theory statements about PDF/CDF, plus an expected-score calculation for multiple-choice exams.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":20,"@type":76,"position":81},"https://docshare.wps.com/document/exam/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/basic-statistics-sample-questions/448714/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/basic-statistics-sample-questions/448714.png","ImageObject",300,407,{"name":92,"@type":93},"SundayMiles","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-21","2026-09-30",true,{"@type":102,"interactionType":103,"userInteractionCount":24},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"How do you determine the correct class limits when the class interval is 10 cents?","Question",{"text":112,"@type":113},"The question lists four candidate sets of class limits; select the option consistent with contiguous intervals of width 0.10 and the appropriate rounding scheme for the given wages data.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What null and alternate hypotheses match the claim about average tour and travel expenses not exceeding $6,000?",{"text":117,"@type":113},"Use H0 to represent the stated “does not exceed” condition (expenses ≤ 6,000) and set HA to represent the alternative that contradicts it (expenses ≠ 6,000 or a one-sided version, depending on the choice).",{"name":119,"@type":110,"acceptedAnswer":120},"Which case makes it impossible to construct a confidence interval for the population mean?",{"text":121,"@type":113},"Choose the option where the necessary distribution/variance assumptions do not hold together (e.g., a skewed population combined with a small sample and an unknown population variance).","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},448714,1790816046,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":24,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":24,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144},1099529839202,"https://ap-avatar.wpscdn.com/davatar_a8503ba1806abce46bf441b54a3ca4cd","| Sample Questions\u003Cbr>Basic Statistics | |\n| --- | --- |\n| 1. Given are the wages paid to workers in a small factory. The class-interval is of 10 cents.\u003Cbr>The class limits for the given data would be taken as  \u003Cbr>a. 1.01-1.10\u003Cbr>1.10-1.20\u003Cbr>1.20-1.30\u003Cbr>1.90-2.00\u003Cbr>b. 1.01-1.10\u003Cbr>1.11-1.20\u003Cbr>1.21-1.30\u003Cbr>1.91-2.00\u003Cbr>c. 1.01-1.09\u003Cbr>1.10-1.19\u003Cbr>1.20-1.29\u003Cbr>1.90-1.99\u003Cbr>d. 0.01-0.10\u003Cbr>0.11-0.20\u003Cbr>0.21-0.30\u003Cbr>1.91-2.00\u003Cbr>2. Tom is trying to open Bob’s computer at office since Bob is on leave. The password consists of digits only and the digits could be from 0-9. He remembers that the password is of 3 digits and no digits repeat. Assume that he gets the correct code only after making all possible attempts. In which attempt does he get the right code?\u003Cbr>a. 1,000\u003Cbr>b. 648\u003Cbr>c. 720\u003Cbr>d. 810\u003Cbr>|  |\n\n\n| 3. Formulate the appropriate null hypothesis and alternate hypothesis. | |\n| --- | --- |\n| The head of the sales department informs the accounts department that the average tour and travel expenses of his team members does not exceed $. 6,000 per month. However, the senior accountant has recently observed that the tour and travel expenses have been increasing and so he decides to test the sales head's claims by considering a sample of his team members' expenses over the last three months.\u003Cbr>a. H0: Expenses = 6,000\u003Cbr>HA: Expenses ≠ 6,000\u003Cbr>b. HA: Expenses ≥ 6,000\u003Cbr>H0: Expenses ≤ 6,000\u003Cbr>c. HA: Expenses ≤ 6,000\u003Cbr>H0: Expenses > 6,000\u003Cbr>d. HA: Expenses > 6,000\u003Cbr>H0: Expenses ≤ 6,000\u003Cbr>e. HA: Expenses \u003C 6,000\u003Cbr>H0: Expenses ≥ 6,000\u003Cbr>4. In pilot testing of a new product, distribution A corresponds to the product ratings given by the company personnel while distribution B corresponds to the product ratings by a stratified sample of consumers. Which of the following is correct?\u003Cbr>a. A and B can have the same mode but never the same mean or median\u003Cbr>b. A and B can have the same median and mode but never the same mean\u003Cbr>c. A and B can have the same mean and median but can never have the same mode\u003Cbr>d. A and B cannot be compared in terms of mean, median and mode\u003Cbr>|  |\n\n5. Under which of the following cases, confidence interval for the population mean cannot be constructed?  \na. A skewed population with a large sample and an unknown population variance  \nb. A normal population with a large sample and a known population variance  \nc. A skewed population with a small sample and an unknown population variance  \nd. A normal population with a small sample and an unknown population variance  \n6. Which of the following conclusions is correct with respect to the data?  \nThe placement committee of a B-school decide to investigate if there is any relationship between the final GPA of a student and the salary package (in thousands) that the student is offered during the campus placements. The regression run on a data of final year students who passed out in the year 2012 is shown  \na. A unit increase in the student's GPA results in $20,000 increase in the salary  \nb. A unit increase in the student's GPA results in $. 7,000 increase in the salary  \nc. A unit increase in the student's GPA results in $. 3,221 increase in the salary  \nd. A unit increase in the student’s GPA results in $1,362 increase in the salary  \n7. If Dylan wants mean profit generated to be greater than the median profit generated, then.  \nDylan, a shopkeeper's son after reading some elementary statistics decides to conduct an analysis on profits generated by each commodity in his father's shop. He distributes each commodity with respect to the percentage profit earned by selling them as shown in the figure  \na. Dylan should include 3 more products each in 2% and 3% profit generating commodity.  \nb. Dylan should include 3 more products each in 5% and 6% profit generating commodity.  \nc. Dylan should include 3 more products each in 3%, 4% and 5% profit generating commodity.  \nd. Mean profit is already greater than median profit.  \n8. Which of the following","cbCaia55d0yYOw1f","https://ap.wps.com/l/cbCaia55d0yYOw1f","pdf",803631,"English","# Sample Questions: Basic Statistics\n## Class intervals and class limits\n## Password attempts (permutations)\n## Null and alternate hypotheses\n## Mean, median, and mode comparisons\n## Confidence intervals for population mean\n## Regression and salary prediction\n## Mean profit vs median profit\n## PDF and CDF statements\n## Expected value for exam scoring","[{\"question\":\"How do you determine the correct class limits when the class interval is 10 cents?\",\"answer\":\"The question lists four candidate sets of class limits; select the option consistent with contiguous intervals of width 0.10 and the appropriate rounding scheme for the given wages data.\"},{\"question\":\"What null and alternate hypotheses match the claim about average tour and travel expenses not exceeding $6,000?\",\"answer\":\"Use H0 to represent the stated “does not exceed” condition (expenses ≤ 6,000) and set HA to represent the alternative that contradicts it (expenses ≠ 6,000 or a one-sided version, depending on the choice).\"},{\"question\":\"Which case makes it impossible to construct a confidence interval for the population mean?\",\"answer\":\"Choose the option where the necessary distribution/variance assumptions do not hold together (e.g., a skewed population combined with a small sample and an unknown population variance).\"}]","Basic Statistics - Sample Questions | PDF",1790728583,13]