統計の問題です。 この問題の解き方がどうしてもわからないです💦 答えだけでもいいので教えていただけませんか？

Assignment 3 (From Lecture 4, 5.)< Suppose we get samples from a population with a distribution of 300 mean and 20 standard deviations. In this case, answer the following questions.< ← (1) What will be the sample distribution of the sample mean when the sample size is 400?< (2) What will be the sample distribution of the sample mean when the sample size is 1600?< ←

統計学の問題です。解答を見るとs＝3.09となるのですが、何故そうなるのか計算式を教えて欲しいです。

第6章 分布と母平均の推定 3. ある工場で生産した製品の中から無作為に10個の標本を抽出して,その 重さを測定したところ次の結果を得た。 22.8 19.7 25.8 21.1 19.6 25.6 18.3 19.0 22.6 16.4 (g) (Question) 先月の同一製品の重さの平均は20g であった。 90%の信頼係数のもとで, 製品の製造に大きな変化が発生したといえるであろうか。 (統計的に有意か) (Answer) n=10 X = 21.09 s = 3.09 90%信頼係数に対応する t分布の10%の有意水準: to.10=1.833 (自由度9) μの上方信頼限界 = 21.09+1.833×3.09/10=22.9 μの下方信頼限界= 21.09-1.833×3.09/10=19.3 この製品の平均重量は90%の信頼係数の下で 19.3g≤u≤22.9g 重量 20g はこの区間に入るから, 統計的に有意な重さではない。 したがって, 先月と今月の製品重量には有意な変化はなかった。

英読解の問題です。 すっかり忘れてしまったため何も分かりません。 2問教えて欲しいです。お願いします><

2022 P=HT 6. 次のお知らせを読み、 (1) ~ (2) のA~Dで適切なものに○をつけなさい。 [4×2=8] TO: All staff From: Erin Liner, Manager Date: July 15 Subject: Our survey Dear all. We have finished reviewing the data which we received from the recent customer satisfaction survey. I would like to share the most important findings, and how we can improve on certain areas of our work. Overall, customers were happy with the quality of our service. the helpfulness of our staff, and the range of products we offer. However, there were some negative comments which we can begin to work on. A common complaint was that there are not enough foreign titles in the store, especially Japanese comics. I will ask John Calman to research some of the most popular series and make sure we start carrying them from the fall. As Gita Pradesh spent her college years in Tokyo, I will ask her to assist. Better signage was another thing which people wanted. They spend a lot of time looking for the right section and it frustrates a lot of customers. This is something we can improve immediately, so I will speak to Alice Moore today about making the signs easier to see, and adding more if necessary. Finally, we got some comments about having a small cafe in the store. Nowadays, people want to have a coffee while reading or browsing, and it could be a new source of profit. Mario Venetti will make a report on the feasibility and deliver it next month. Thank you for all your efforts in making us the best we can be. Erin Liner Manager (1) What is the purpose of the e-mail? (A) To ask staff to create survey questions (B) To share details of customer feedback (C) To inform staff of recent changes (D) To invite staff to apply for new positions (2) Where does Ms. Liner most likely work? (A) At a café (B) At a movie theater (C) At a clothing shop (D) At a bookstore 以

答えがあっているか確認して欲しいです。 お願いします。

1 Put the words in the correct order to make direct or indirect questions. 1 was /if/ could / I / order /an/place/I/ wondering I was wondering if I could place an order 2 much /a/ does / it / magazine / cost / how / to / send ? 3 idea / do / you / how / any / it / long / have / takes 4 would / mind / arrived / if / a / telling / me / has / package / you 5 has / visitor / yet / my / arrived 6 tell the / where / is / me / could/post/ anyone / office 7 do / for / you/ a / if / know / left / message / they / me 8 will/my/what / arrive / day / order 2 Complete the indirect questions so that they have the same meaning as the direct questions. 1 What would you like to drink? I was wondering what you'd like to drink 2 Why didn't you call to say you'd be late? I'd like to know 3 Where the next conference? Could you tell me 4 Which flight is Mr Stoppard on? Do you have any idea 5 Are they arriving tonight? ? Do you know 6 How often does the bus come? Would you mind telling me ? ?

至急教えてほしいです! よろしくお願いします！

2 Skill in Action 以下の文は本文のものです。 第2文型、第4文型、第5文型のうちどれであるか指摘しなさい。 (*の単語は Reading Passage に Notes があります。) 1. I asked a lot of people this question. 2. Everyone appeared puzzled. 3. It definitely seemed much more natural to turn left. 22 4. Another book showed me a natural explanation. 5. They made me even more frustrated."

できれば解説付きで教えて欲しいです。 TOEICの問題です。

1. Local libraries offer reading programs for children and ESL for adults. (A) frequently (B) frequenting (C) frequent (D) frequented 2. This year's excellent has earned our production plant renowned in the Company. (A) performed (B) performable (C) performance (D) perform 3. Anyone who a new stove by CTX Ltd. this weekend receives a free fourpieces set of set of stainless -steel saucepans. (A) purchase (B) purchaser (C) purchases (D) purchasing 4. The primary concern among our manufactures is acquiring the necessary resources at a reasonable price. (A) finances (B) financed (C) financial (D) financially 5. Questions about production concerns should be to Ms. Bates. (A) direction (B) director (C) directs (D) directed 6. Last week's performance was judged to be a major even though it received no local media coverage. (A) success (B) succeed (C) successful (D) successfulness 7. Underwood Energy Services Inc. offers benefits to full-time employees, including dental insurance. (A) attraction (B) attractive (C) attract (D) attracted 8. Mr. Whatley unintentionally took Ms. Pots' timetable, thinking it was (A) him (B) himself (C) his (D) he

問4が、どうしても分かりません。 （化学ですり。）

問4 組成式 原子量27 の金属 M の酸化物に含まれる M の割合は, 酸化物の質量に対して 53%であった。酸 化物の組成式を選べ。 え得はともに書 の MO 2 MO2 3 MO。 のM。O 6 MO3 6 MO5

I have a question about that states law allowing coming effect months few campus in into guns on a that's. これを文法に忠実に則って並べ替えかえるとどんな文になります... 続きを読む

In parallel with the imposed restrictions to prevent viral spread and the testing of (mainly) repurposed anti-viral treatments is the acc... 続きを読む

これ読んだんですけど、自分は世界史を理解してなかったので分からなくて翻訳アプリ使ったんですけどそれでも分からなかったので分かる方できれば解読お願いします┏●

Denmark in World War II お んれ By Hannah Arendt Hannab Arendt (1906-1975) was a political scientist! and pbilosopber born in Hanover, Germany. Wben Hitler came to power, sbe was forced to leave Germany and came to the United States in 1940. Sbe continued ber academic career by lecturing and teacbing at arious colleges, including The New Scbool for Social Researcb in New York City. Among the many books sbe urote were Eichmann in Jerusalem, On Revolution, and The Origins of Totalitarianism. Editor's Insert During the Second World War. the Germans invaded Denmark in April, 1940. In the beginning of her essay, Hannah Arendt explains that of the four countries almost completely immune to anti-Semitism- Denmark, Sweden, Italy, and Bulgaria Denmark challenged its German masters directly. As soon as the German authorities talked about forcing Jews to wear the yellow badge,' the Danes replied that all Danish citizens, including the King, would be wearing it the next day if the policy were carried out. In addition, all Danish government officials threatened 舌は the German authorities with their immediate resignation if the Germans started to implement any anti-Jewish actions. The following excerpt from Eicbmann in Jerusatem shows how the Danes sabotaged the German plan to carry out the mass extermination of the Jews. only 2タカ人の What happened then was truly amazing; compared with what took place in other European countries, everything went topsy-turvey. In August, ー after the German offensive in Russia had failed, the Afrika Korns 1943 had surrendered in Tunisia, and the Allies had invaded Italy すgovernment canceled its 1940 agreement with Germany which had permitted German troops the right to pass through the country. Thereupon. the Danish workers decided that they could help a bit in hurrying things そのうえに up: riots broke out in Danish shipyards, where the dock workers refused to repair German ships and then went on strike. The German militarv commander proclaimed a state of emergency and imposed martial la and Himmler thought this was the right moment to tackle the Te the Swedish す。 (continued on next page) themselves as Jews secret police), and overseer of the concentration camps