A sales manager is preparing a report before he would attend meeting. He would like to compare the sales of the pneumaticsdepartment and the controls department. Based on the information from the last month, below are the sales in Php or each salesengineer.Pneumatics 990038006800890054008700650050003700 4800105001350014300Controls8500 950063004700450050004600 830079009700650048001060044008000At 0.05 level of significance, can he conclude that the pneumatics department are greater than the control department?

Hypotheses for the test are given below: Test statistic for t-test: Since population standard…

Answered: A sales manager is preparing a report…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Do women and men differ in how they perceive their life expectancy? A researcher asked a sample of men and women to indicate their life expectancy. This was compared with values from actuarial tables, and the relative percent difference was computed; perceived life expectancy minus life expectancy from actuarial tables was divided by life expectancy from actuarial tables and converted to a percent. The relative percent differences for all men and women over the age of 7070 in the sample are given. Men −28−28 −23−23 −20−20 −19−19 −14−14 −13−13 Women −20−20 −19−19 −15−15 −12−12 −10−10 −8−8 −5−5 The given data shows output for the two‑sample ?t test using Option 1. This output is from CrunchIt! software, which does Option 1 without rounding or truncating the degrees of freedom. Do men and women over 70 years old differ in their perceptions of life expectancy? There is somewhat strong evidence that men and women differ in their views on their own longevity; we would reject ?0H0…
The table below displays the adult literacy rate in Bolivia for several different years. The adult literacy rate is the percentage of people ages 15 and above who can both read and write with understanding a short simple statement about their everyday life. Data downloaded on 2/19/2020 from https://ourworldindata.org/grapher/literacy-rate-adults?tab=chart&time=1973..2016. Year 1976 2001 2012 Literacy Rate 63.2% 86.7% 94.5% When answering the questions below, round to four decimal places in your intermediate computations. Use interpolation or extrapolation (whichever is appropriate) to predict the literacy rate in Bolivia in 1992. Round your answer to one decimal place. You only get one submission for the unit. ---Select--- Use interpolation or extrapolation (whichever is appropriate) to predict the literacy rate in Bolivia in 2050. Round your answer to one decimal place. You only get one submission for the unit. ---Select--- Is your 2050 prediction realistic? You must…
Please explain all work, including use of excel.
Median household incomes tend to increase from one year to the next. In 2019, the median household income was $64,101 in Madison, Wisconsin, and $42,087 in Milwaukee. In 2020, the median household incomes were $66,847 in Madison and $44,192 in Milwaukee. Find the absolute and relative changes for median household incomes in Madison and Milwaukee from 2019 to 2020. Give any percentage values rounded to the nearest tenth of a percent and dollar values to the nearest whole dollar amount. (a) From 2019 to 2020, the absolute change for median household income in Madison was$ . (b) From 2019 to 2020, the relative change for median household income in Madison was %. (c) From 2019 to 2020, the absolute change for median household income in Milwaukee was$ . (d) From 2019 to 2020, the relative change for median household income in Milwaukee was %.
-ons Help Last edit was seconds ago Arial 9. BIU A + + ... 4. JOYFUL Fashion Company is reviewing the monthly sales in year 2021.The monthly sales (in millions) of each month were as below: Jan: $2.2 Feb: $2.5 Mar: $2.0 Apr: $2.8 May: $1.9 Jun: $0.9 Jul: $3.4 Aug: $3.7 Sep: $2.1 Oct: $2.5 Nov: $2.3 Dec: $4.6 (a) Find the mean, mode, standard deviation, and range of the above data. (b) Comment on the skewness of the above data. Explain your answer with the comparison of quartiles. The JOYFUL Fashion Company will issue a Gold Membership to customers with accumulated spending in January 2022 over 1% of 2021's average monthly sales and a Platinum Membership to customers with accumulated spending in January 2022 over 1% of the 80m percentile of 2021's monthly sales. (c) Mrs. Robinson has spent $27,450 in January 2022. Will she be qualified for the Gold Membership? Will she be qualified for the Platinum Membership? Explain your answers. (d) It is known that the average monthly sales from Jul…
The following table shows the square footage of houses in an area that sold recently along with the selling price. Sq. Ft. Price 2096, 295000, 3160, 338000, 2320, 265000, 3150, 365000, 2760, 330000, 3650, 412000, 2125, 320000, 3085, 342000, 4750, 485000, 2100, 320000, 3100, 316000, 2240, 321000, 3300, 347000, 2800, 350000, 2825, 330000, 3275, 420000 1. Find the equation of the regression line (line of best fit). 2. Determine if there is a strong linear correlation. 3. If there is a strong linear correlation predict the selling price of a 3333 sq. ft. home
A sports psychologist wants to compare the running time for athletes vs non-athletes while running 1 mile. He collects data from 226 non-athletes and 166 athletes and analyzes it using SPSS.
Use excel to do all calculations. Please show all work.
The box plots below show how fast cars are travelling at a specific time of a day on highway I-5 and l-405 in King county. Fill in the blank. I-405 I-5 45 50 55 60 65 70 75 Speed (miles per hour) If Jay is driving at the median speed on l-5, he is driving faster than % of drivers on l-405.
What is the interquartile range of 32, 21, 17, 38 and 6.

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