Week 1 Homework

(C) Use the adjusted seasonal indexes given in part (a) to adjust the forecasts developed in part (b) to account for the effect of season. (Round your answers to one decimal place.) forecast for quarter 1: 15.7 forecast for quarter 2: 26.7 forecast for quarter 3: 47.6 forecast for quarter 4: 15.3   The answers for this questions came back as wrong. I am unsure how else I would solve it.

Your Mark:     OUT OF 2           Instruction: There are two parts (a to b) to this question. Answer all of them. Fill in your answer in the coloured box below.                             Question 1                   The administrator of the undergraduate program of a University is interested in determining the post-program employment of the grads. The survey asked a series of questions including the following: 1) What is your post-program employment position? 2) What is your post-program employment location (country)? 3) What is your post-program employment position base salary in dollars (rounded to the nearest thousands)? 4) How many months after graduation did you find the job?  A random sample of 50 graduates' responses are collected.                                             a. Identify how many cases are collected.                                                                                               b. Identify whether the responses…

chapter 5  10. A buyer plans to purchase 250 towels for the store's harvest sale and to retail each towel for $7.50.  He has placed an order for 128 towels that cost $3.25 each.  What is the most he can pay for each of the remaining towels if he wishes to average a 42% markup?   Present your answer with a dollar-sign, comma separator, and rounded to the penny (i.e. $1,250.88).

Only parts d and e will be solved. A social media publicist working for a popular video game developer company wants to study the social media content viewing habits of Youtube platform users. A random sample of 40 users is selected, and each user is instructed to keep a detailed record of all content viewing in a particular month. The results are as follows:• Viewing time per month: ? = 15.3 hours, S = 3.8 hours.• 27 users watch the content published on evening on at least three nights in a month.a. Construct a 90% confidence interval estimate for the mean amount of content watched per month on Youtube.b. Construct a 90% confidence interval estimate for the population proportion who watch the evening content on at least three nights per month.Suppose that the social media publicist wants to take another survey in a different platform. Answer these questions:c. What sample size is required to be 90% confident of estimating the population mean viewing time to within ± 2 hours assuming…

Question 3 Fiona and Franny were comparing balances and interest rates on their respective car loans.  At the end of last month Fiona still owed $12,300 and is paying 3.6% interest and Franny still owed $9,500 and is paying 4.66% interest.  Fiona said she was going to have a larger interest charge than Franny this month, and Franny said she was going to have a larger interest charge this than Fiona.  Which one is correct?   Group of answer choices Fiona is correct since her interest charge this month is $36.89 and Fiona's is $36.90 Fiona is correct since her interest charge this month is $36.90 and Franny's is $36.89 Franny is correct since her interest charge this month is $36.89 and Fiona's is $36.90 Franny is correct since her interest charge this month is $36.90 and Fiona's is $36.89 Neither are correct since both will have the same interest charge this month.

Question No. 3:                                                                                              The average time that Italy commute to work is 23.15 minutes (Best 4 Tourist Places, June 15, 2020). The average commute times in minutes for 18 cities are given in Table 3.1.   Table 3.1 City Time (minutes) Rome 24.9 Milan 26.8 Naples 26.2 Turin 28.1 Palermo 31.7 Genoa 25.8 Bologna 23.3 Florence 32.1 Bari 28.5 Catania 24.4 Verona 29.3 Venice 24.8 Messina 38.1 Padua 28.3 Trieste 28.4 Taranto 24.6 Prato 20.1 Modena 23.4   a)      What is the mean commute time for these 18 cities?   b)      What is the median commute time for these 18 cities?   c)      What is the mode for these 18 cities?   d)      What is the variance and standard deviation of commute times for these 18 cities?   e)      Find the z – score value of commute time for…

Question No. 3:                                                                                              The average time that Italy commute to work is 23.15 minutes (Best 4 Tourist Places, June 15, 2020). The average commute times in minutes for 18 cities are given in Table 3.1.   Table 3.1 City Time (minutes) Rome 24.9 Milan 26.8 Naples 26.2 Turin 28.1 Palermo 31.7 Genoa 25.8 Bologna 23.3 Florence 32.1 Bari 28.5 Catania 24.4 Verona 29.3 Venice 24.8 Messina 38.1 Padua 28.3 Trieste 28.4 Taranto 24.6 Prato 20.1 Modena 23.4 a)      What is the variance and standard deviation of commute times for these 18 cities?   b)      Find the z – score value of commute time for these 18 cities.   c)       Find 28th and 77th Percentile of commute times for these 18 cities.

Question 2 The past records of a supermarket show that its customers spend an average of $65 per visit at this store. Recently the management of the store initiated a promotional campaign according to which each customer receives points based on the total money spent at the store, and these points can be used to buy products at the store. The management expects that as a result of this campaign, the customers should be encouraged to spend more money at the store. To check whether this is true, the manager of the store took a sample of 12 customers who visited the store. The following data give the money (in dollars) spent by these customers at this supermarket during their visits. 88 69 141 28 106 45 32 51 78 54 110 83 Assume that the money spent by all customers at this supermarket has a normal distribution. Using the 5% significance level, can you conclude that the mean amount of money spend by all customers at this supermarket after the campaign was started is more than $65?

An elementary education researcher was interested in seeing how the color used to make corrections on students’ papers affected their self-esteem. He assembled first graders and asked them to take a third-grade math test. He told the first graders that the test would be very difficult for them and they might not get very many answers right, but he needed their help. After the students were each called into a room to take the test alone, he pretended to grade it. Everyone had 25% of their answers marked wrong. For half the kids, these answers were marked with red ink and for the other half, the “incorrect” answers were marked with pencil. Each child then took a self-esteem inventory on which higher scores indicate more self-esteem. The 17 red ink kids had a mean of 23.00 (s = 5.00); the 10 pencil kids had a mean score of 29.00 (s = 5.00). Using s2pooled =25.0, sM1−M2 =1.99, and alpha of .05 and a two tailed test, determine if there is a difference in self-esteem.

answer the following quaries  4. A survey was conducted to 100 students to determine how much time they spend for studying before taking a major examination. The observations are between 90 and 270 minutes. How many classes will you recommend? What is the class interval? 5. A sari-sari storeowner monitors his daily sales for a period of 30 days. The following are his daily sales: 560     960     260     900     700     1020 370     940     340     400     795     240 200     390     100     500     890     900 250     450     1010    650     800     450 250     450     890     695     749     360

I need help in task 3 , i provided the previous tasks if needed