Hypothesis TestingTesting the Population MeanDirections: Perform what is being asked. Write your answers on the spaces provided.1. A researcher reports that the average salary of College Deans is more than Php 63,000. A sample of35 College Deans has a mean salary of Php 65,700. At a = 0.01, test the claim that the College Deansearn more than Php 63 000 a month. The standard deviation of the population is Php 5,250.Solution:Step 1: Null and alternative hypothesisHo:H₂:Step 2: Significance levelα=Step 3: Test statistic:Step 4: Decision rule:Step 5: Decision:

A random sample of 35 colleges deans has a mean salary 65700;n=35 x=65700Population standard…

Answered: Directions: Perform what is being…

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 second pic is the step to solve the problem just the number 1
Solve. Also, use n=40. It's not in the question. Thank you
For the study purpose, the mean of the observations is 148 gm and standard deviation is 17.4 gm. Approximately, the coefficient of variation equals to: А. 11 С. 12 В. 14 D. 13
To compare the dry braking distances from 30 to 0 miles per hour for two makes of automobiles, a safety engineer conducts braking tests for 35 models of Make A and 35 models of Make B. The mean braking distance for Make A is 42 feet. Assume the population standard deviation is 4.7 feet. The mean braking distance for Make B is 45 feet. Assume the population standard deviation is 4.4 feet. At a = 0.10, can the engineer support the claim that the mean braking distances are different for the two makes of automobiles? Assume the samples are random and independent, and the populations are normally distributed. Complete parts (a) rari rz (b) Find the critical value(s) and identify the rejection region(s). The critical value(s) is/are (Round to three decimal places as needed. Use a comma to separate answers as needed.)
The average labor charge for automobile mechanics is OMR 69 per hour. The standard deviation is OMR 18. Find the minimum percentage of data values that will fall within the range of OMR 68 to OMR 80. Use Chebyshev's theorem. SHOW ALL THE WORKINGS, FORMULA etc.
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Wedding bells: A wedding planner reports that the mean wedding cost is different than $28,000. A test is made of H.:H =28,000 versus H,:H = 28,000. The null hypothesis is not rejected. State an appropriate conclusion.
Use the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway per hour and 85 miles per hour. (Assume the data set has a bell-shaped distribution.) 70 miles per hour, with a standard deviation of 5 miles per hour. Estimate the percent of vehicles whese speeds are between 55 miles Approximately% of vehicles travel between 55 miles per hour and 85 miles per hour.
Solve using following 7 steps/format provided in picture. Required to do the 7 steps provided in pic. Write readable thanks.
Assume the cholesterol levels of an adult can be described by a Normal model with a mean of 183 mg/dL and a standard deviation of 27. Complete parts a through e. b) What percent of adults do you expect to have cholesterol levels over 190 mg/dL? enter your response here % (Round to two decimal places as needed.) Part 3 c) What percent of adults do you expect to have cholesterol levels between 150 and 160 mg/dL? enter your response here % (Round to two decimal places as needed.) Part 4 d) Estimate the interquartile range of cholesterol levels. IQR=enter your response here mg/dL (Round to the nearest integer as needed.) Part 5 e) Above what value are the highest 15% of adults' cholesterol levels? enter your response here mg/dL (Round to the nearest integer as needed.)
Please answer the questions as soon as possible. Don’t need to explain everything step by step just solve the questions do the math only.
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