i need this for tomorrow HFilePasteLEHomeCutCopyFormat PainterClipboardPage 1 of 3Insert739 wordsIDraw Design Layout ReferencesCalibri Light 18B I Uabe X₂ X²VÁ AFontAa ▾ PAaly - A-nx English (United States)SMailings Review View8·6·5 €¶ParagraphHelpTell me what you want to doAaBbccDd AaBb AaBbccDdt AaBbCct AaB AaBbcct AaBbCcDd! AaBbCcDdi AaBbCcDd AaBbCcDdE AaBbCcDd! AaBbCcDdlT NormalHeading 1 No Spac... Heading 2TitleSubtitleSubtle Em...EmphasisIntense E... Strong1·2·1·1·1·1·1·1·2·1·3·1·4·1·5·1·6·1·7·1·8·1·9·|· 10 ·|·11·|·12·|· 13 ·|·14·|· 15 · |· 16 · ·17· |·18·|·19ACTIVITY SHEETExercises:I. Answer the following:1. A psychologist claims that the mean age at which children start walking is 12.5 months. Thefollowing data give the age at which 18 randomly selected children started walking.15 11 13 14 15 12 15 10 16 17 14 16 13 15 15 14 11 13Test at the 1% level of significance if the mean age at which children start walking is different from12.5 months.stats-man (1) Word2. A sample of 800 items produced on a new machine showed that 48 of them are defective. Thefactory will get rid the machine if the data indicates that the proportion of defective items issignificantly more than 5%. At a significance level of 10% does the factory get rid of the machineor not?3. A manufacturer of electric lamps is testing a new production method that will be consideredacceptable if the lamps produced by this method result in a normal population with an average lifeof 2,400 hours and a standard deviation equal to 300. A sample of 100 lamps produced by thismethod has an average life of 2,320 hours. Can the hypothesis of validity for the newmanufacturing process be accepted with a risk equal to or less than 5%?Answer the following:StylesA Kristine Mae PalomataAABECCDDE AABBCCDDI AaBbCcDdlQuote Intense Q... Subtle Ref... Intense Re... Book TitleAssessment1. The quality control division of a factory that manufactures batteries suspects defects in theproduction of a model of mobile phone battery which results in a lower life for the product. Untilnow, the time duration in phone conversation for the battery followed a normal distribution witha mean of 300 minutes and a standard deviation of 30. However, in an inspection of the last batchproduced before sending it to market, it was found that the average time spent in conversationwas 290 minutes in a sample of 60 batteries. Assuming that the time is still normal with the samestandard deviation:Can it be concluded that the quality control suspicions are true at a significance level of 1%?2. It is believed that the average level of prothrombin in a normal population is 20 mg/100 ml of bloodplasma with a standard deviation of 4 milligrams/100 ml. To verify this, a sample is taken from 40individuals in whom the average is 18.5 mg/100 ml. Can the hypothesis be accepted with asignificance level of 5%?4) E ENG3. Within a really large population items either have or do not have a particular characteristic. Wewant to test the hypothesis that the proportion of items with that characteristic in the populationis 50.0% against the alternative that the true proportion is less than 50.0%. We will perform this testat the 0.0675 level of significance. We take a sample of size 112 of that population. Within thatsample we find that we have 48 items that have that particular characteristic.BF9:26 pm15/11/2022Findac ReplaceSelectEditingLJShare2687% ASLFilePasteEHome InsertCutCopyFormat PainterClipboardSHDraw Design Layout ReferencesPage 3 of 3 739 words nxCalibri Light 18B T U ▾ abe X₂ X² A-ay.A.VÁ AFontAa ▾ PEnglish (United States)Mailings Review ViewB-6.5 €£ ↓ ¶= = :Paragraph1.2.1.1·1·1·2·1·3·1·4·1·5·1·6·1·7·1·8·1·9·|· 10 ·|· 11 ·|Helpstats-man (1) WordTell me what you want to doAaBbccDd AaBb AaBbccDd: AaBbCcL AaB AaBbcct AaBbCcDdt AaBbCcDdt AaBbCcDd! AaBbCcDdE AaBbCcDd! AaBbCcDd!T NormalHeading 1 No Spac... Heading 2TitleSubtitle Subtle Em... EmphasisIntense E...Strong· 12 · |· 13 · |· 14 · |· 15 · |· 16 · · 17 · |· 18 · 19Solve the following problem.StylesAssignment1. In the following table we have a sample taken from a large population. The items in that populationcan be classified in 3 different ways, which we have named by the values 1 through 3.Table of sample characteristics13311322 213 211 212 2221231 3 1 3 3 31 213212 213 21 1 1 2 2 1 1 1 3 32We are interested in testing the hypothesis that in the population the proportion of items with thecharacteristic assigned the value 1 is equal to 40.00% against the alternative that the proportion is not equalto 40.00%. We want to run this test at the 0.0675 level of significance. Use excel in solving the problem.2. Within a really large population items either have or do not have a particular characteristic. Wewant to test the hypothesis that the proportion of items with that characteristic in the populationis 72.0% against the alternative that the true proportion is not equal to 72.0%. We will perform thistest at the 0.0925 level of significance. We take a sample of size 103 of that population. Within thatsample we find that we have 65 items that have that particular characteristic.3. Within a really large population items either have or do not have a particular characteristic. Wewant to test the hypothesis that the proportion of items with that characteristic in the populationis 70.0% against the alternative that the true proportion is not equal to 70.0%. We will perform thistest at the 0.0775 level of significance. We take a sample of size 96 of that population. Within thatsample we find that we have 59 items that have that particular characteristic.4) E ENGA Kristine Mae PalomataAABBCCDDE AABBCCDDI AaBbCcDdlQuote Intense Q... Subtle Ref... Intense Re... Book TitleF9:26 pm15/11/2022Findac Replace▸ Select -EditingLJShare26100%

As per the Bartleby guildlines we have to solve first question and rest can be reposted.... Data…

ish Sunited States ACTIVITY SHEET Exercises 1. Answer the following 1. A psychologist claims that the mean age at which children start walking is 125 months. The following data give the age at which 18 randomly selected children started walking. 15 11 13 14 15 12 15 10 16 17 14 16 13 15 15 14 11 13 Test at the 1% level of significance if the mean age at which children start walking is different from 12.5 months 2. A sample of 800 items produced on a new machine showed that 48 of them are defective. The factory will get rid the machine if the data indicates that the proportion of defective items is significantly more than 5%. At a significance level of 10% does the factory get rid of the machine or not? 3. A manufacturer of electric lamps is testing a new production method that will be considered acceptable if the lamps produced by this method result in a normal population with an average life of 2,400 hours and a standard deviation equal to 300. A sample of 100 lamps produced by this method has an average life of 2,320 hours. Can the hypothesis of validity for the new manufacturing process be accepted with a risk equal to or less than 5%?