5.Cell Phone BillsThe average monthly cell phone bill was reported to be $50.07 by the U.S. Wireless Industry. Random sampling of alarge cell phone company found the following monthly cell phone charges:55.8349.8862.98 70.4260.4752.4549.2050.0258.6051.29At the 0.05 level of significance can it be concluded that the average phone bill has increased?Source: World Almanac.

Answered: Image /qna-images/answer/87fa9815-be24-4e25-9a9a-426bf26239d7.jpg

Answered: 5. Cell Phone Bills The average monthly…

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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The ages of a sample of 12 students enrolled in an online macroeconomics course are as follows: 21 22 27 36 18 19 22 23 22 28 36 33 a. What is the mean age for this sample? b. Find the median age. c. What is the value of the modal age?
state health web site provides information on the cost-to-charge ratio (the percentage of billed charges that are actual costs to the hospital). The cost-to-charge ratios for both inpatient and outpatient care in 2002 for a sample of six hospitals of that state follow. (Use a statistical computer package to calculate the P-value. Use ?inpatient − ?outpatient. Round your test statistic to two decimal places and your P-value to three decimal places.) Hospital 2002InpatientRatio 2002OutpatientRatio 1 86 78 2 77 58 3 99 77 4 65 57 5 65 50 6 104 69 t = df = P-value = Is there sufficient evidence to suggest that the mean difference cost-to-charge ratio for the state's hospitals is lower for outpatient care than for inpatient care? Use a significance level of 0.05. Yes OR No
find sample standard deviation for given data 12,15,63,96,78,85,64,45,25,35,14,15,46
How many observations are in the data set? How do I calculate this in the "R" program?
(b) What are the sample median annual salaries (in $) for the two professions? sample median = $ Public Accountants Financial Planners sample median = $
Given the sample data below, use the defining formula to compute the sample standard deviation.30 26 23 24 24 28
What is the mode? Answer as an INTEGER. If necessary, round to the nearest integer. If it is not applicable or not available, type “na” instead.
The 2018 General Social Survey contains information on the number of 1F poor mental health days adults in the US had in the last month. The data arę below. Calculate the standard error of the mean number of poor health days for females. Table 1. Mean number of poor mental health days in the last 30 days by sex Male Female Total Mean S.D. 3.55 6.78 1408 3.02 4.06 6.43 7.07 678 730 Source GSS 2018 Your answer
Refer to the table of sample values in Section 8.2 Exercise 6 of the text.Find the values of the UCL and LCL used in the p chart for this data, and round your answers to 5 places after the decimal point.Hint: Make sure that you use the EXACT value of (p-bar) in your calculations. a. UCL = 0.69914LCL = -0.21164 b. UCL = 0.69955LCL = -0.21155 c. UCL = 0.69955LCL = 0 d. UCL = 0.69914LCL = 0
The accompanying table contains the overall download and upload speeds in mbps for nine carriers in a particular country. a. Compute the mean and median. Data table The mean download speed is (Type an integer or decimal rounded to two decimal places as needed.) Carrier Download Speed Upload Speed Carrier 1 22.7 14.9 The mean upload speed is. (Type an integer or decimal rounded to two decimal places as needed.) Carrier 2 22.0 12.9 Carrier 3 20.7 8.8 The median download speed is. Carrier 4 16.6 11.1 (Type an integer or decimal rounded to two decimal places as needed.) Carrier 5 11.5 6.1 Carrier 6 9.9 6.5 The median upload speed is. (Type an integer or decimal rounded to two decimal places as needed.) Carrier 7 10.6 6.5 Carrier 8 6.7 3.0 b. Compute the variance, standard deviation, range, and coefficient of variation. Carrier 9 4.3 3.9 The variance for the download speeds is. (Type an integer or decimal rounded to two decimal places as needed.) Print Dore P Type here to search 7. 3. T Y.…
Given the set {84.60, 84.60, 83.90, 83.90, 83.70, 83.60, 83.40, 83.40, 83.30, 83.30, 83.00, 82.80. 82.50, 82.50 and 82.40} A. Find the geometric mean of rating. B. Calculate the population standard deviation. C. Calculate the population standard variance.
The contents (in ml) of a sample of 18 bottles of locally distributed premium essential oils are given. 0.68, 1.29, 0.93, 1.02, 0.74, 1.43, 1.29, 1.20, 0.68, 1.46, 1.33, 1.14, 1.33, 1.46, 0.74 1.33, 1.02, 0.93. The midrange isA. 1.055B. 1.070C. 1.100D. 1.14

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