573_Asst

Please Help

https://www.kurzweil3000.com E 8th Grade CA 2 na173d81952bc65245f72/MyFiles/Downloads/8th_Grade_CA 2.pdf 10 / 12 100% + | 12 The diagram shows a column with two cables attached to each side. The distance from the base of the column to the point where the cables are attached to the ground is 15 ft, and the cables are 25 ft long and 17 ft long. 25 ft 17 ft 15 ft What is the distance between point A and point B in feet? 8 ft G 20 ft H. 12 ft J 10 ft M 9

If the variance of a national accounting examination is 900, how large a sample is needed to estimate the true mean score within 5 points with 99% confidence? Z score is   Use an Excel Function to calculate Z   sample size is   Show the Formula that you use to calculate it.

What type of data:  The weight of cars crossing the Golden Gate Bridge. Qualitative Quantitative Discrete Quantitative Continuous

I have attached an image for the question, please include instructions on how to figure this out if possible with stat crunch or excel.

Before using these mean squares what does we must calculate?

12 13 14 15 16 17 18 19 20 21 22 23 24 25 H Movie Ticket Prices 4 5 5 B 6 10 11 Cost Of Ticket Which of the following is the best measure of center for the data shown, and what is that value? O The mean is the best measure of center and equals 11. O The mean is the best measure of center and equals 11.5. O The median is the best measure of center and equals 11. O The median is the best measure of center and equals 11.5.

Matilda was curious if sample interquartile range (IQR) was an unbiased estima- tor of population IQR. She placed ping pong balls numbered from 0 to 32 in a drum and mixed them well. Note that the IQR of the population is 16. She then took a random sample of 5 balls and calculated the IQR of the sample. She replaced the balls and repeated this process for a total of 50 trials. Her results are summarized in the dotplot below, where each dot represents the sample IQR from a sample of 5 balls. H|| 5 10 15 25 Sample IQR Based on these results, does sample IQR appear to be a biased or unbiased estimator of population IQR? Explain briefly. 20

3:49 PM Sat Jan 30 MAT150 Online Assignment #1.docx Assignment #1 – How to use Calculator 1. If range is 60, number of class is 6, what is the class width? (Round up to next whole number) class width === 2. The data set is 2,4,5,7,10,15, what is sum Ex and the mean (Average)? (Round to the nearest tenth). Ex = 2+4+5+7+10+15 = (n is how many numbers there are) 3. If IQR is 0.69, find Usual Min and Usual Max? Usual Min = 0.68 – 1.5*IQR = Usual Max = 1.22 + 1.5*IQR = 4. Fill out the table below: H= 77.67 58 58 – 77.67 = -19.67 (-19.67)² = 386.9089 LL 5. Fill out the table below: x P(x) xP(x) x² x´p(x) 00.10 10.30 20.60 6. If , what is 7. If µ=5.5, o=0,1, n=16, what is a µ̟ and o̟? = 11 = *r. ==0 8. n= 150, o = 6,2, = 1 – 0.99 = 0.01, Z,= Z,005 = 2.575 SO0'0=1 pul Find 2.2 + E =. Find 2.2 – E =

了 * 00 R Frequency cc.edu/webapps/assessment/take/launch.jsp?course_assessment_id=_842675_1&course_id%=_859154_1&content_id%3_19492605_1&step * Question Completion Status: QUESTION 1 The following histogram represents the number of body piercings for students in a statistics class. 40 0 2 4. 9 Number of Piercings 8 a. Is this graph symmetric or skewed? b. For this graph, is mean or median the best choice for the measure of center? c. For this graph, is standard deviation or IQR the best choice for the measure of variation? d. For this graph, the mean expected to be (higher than, lower than, or about the same as?) the median. QUESTION 2 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save 2 étv MacBook Air DD F7 F8 08 F 4 F5 F3 2$ 4 #3 9. 6. 5. |

A photoconductor film is manufactured at a nominal thickness of 25 mils. The product engineer wishes to increase the mean speed of the film, and believes that this can be achieved by reducing the thickness of the film to 20 mils. Eight samples of each film thickness are manufactured in a pilot production process, and the film speed (in microjoules per square inch) is measured. For the 25-mil film, the sample data result is = 1.15 and 81 = 0.11, while for the 20-mil film, the data yield 2 = 1.06 and 82 = 0.09. Note that an increase in film speed vould lower the value of the observation in microjoules per square inch. (a) Do the data support the claim that reducing the film thickness increases the mean speed of the film? Use a = 0.10 and assume that the two population variances are equal and the underlying population of film speed is normally distributed. What is the P-value for this test? Round your answer to three decimal places (e.g. 98.765). The data the claim that reducing the film…

Please help, this is one full question.

Plz solve  it correctly I vill give 4 upvotes.