onsanhHere are summary statistics for randomly selected weights of newborn girls: n = 36, x= 3222.2 g, s= 686.7 g. Use a confidence level of 90% to complete parts (a. Identify the critical value t/2 used for finding the margin of error.ta/2 =(Round to two decimal places as needed)b. Find the margin of error.E =(Round to one decimal place as needed.)c. Find the confidence interval estimate of(Round to one decimal place as needed.)d. Write a brief statement that interprets the confidence interval. Choose the correct answer belowO A. One has 90% confidence that the sample mean weight of newborn girls is equal to the population mean weight of newborn girls.OB. One has 90% confidence that the interval from the lower bound to the upper bound contains the true value of the population mean weight of newborn girls.O C. There is a 90% chance that the true value of the population mean weight of newborn girls will fall between the lower bound and the upper bound.O D. Approximately 90% of sample mean weights of newborn girls will fall between the lower bound and the upper boundStatcrunche Type here to searchhpf8f9f10f3f1?米f4fsf610144esc%244.1tabcanc .00%24%232

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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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Study A Use the following description of a research study to answer the next five questions. Researchers were were interested in promoting physical activity within the workplace. They recruited participants to join a team challenge encouraging ways to increase physical activity such as taking active breaks and taking the stairs. Participants either joined as a team or were assigned a team. These teams were then randomly assigned either to be the control group where they just received information about becoming more active or the team-building group, which received the same information as the control group but were encouraged to create a team name and bond as a team throughout the study. One outcome measure of the study was the number of flights of stairs that participants reported taking yesterday. Group Statistics Intervention Mean Std. Deviation Std. Error Mean Flights of stairs yesterday Cbntrol 18 2.3889 3.29240 77603 Team-building 16 6.0000 5.50151 1.37538 Lena Tes Equalty at…
A particular fruit's weights are normally distributed, with a mean of 515 grams and a standard deviation of 36 grams. The heaviest 13% of fruits weigh more than how many grams? Give your answer to the nearest gram. Enter an integer or decimal number [more..] Submit Question 2 Type here to search hp esc 12 fs 2 3 4 LO 远 %24 %23
Consider the data from the Anthropology 105 class. The mean for women is 64.33 in and the standard deviation is 2.64 in. The average height of men in the US is approximately 5ft 10in. What proportion of women represented here are shorter than the average man?
Analyze the Data Given the following values. a. Min = 3 b. M = 16 c. Max = 50 d. 6 Q1 = Q3 = 25 e. f. IQR = 19 A Construct a box plot of data B What does the shape of the box plot imply about the concentration of data? Use complete sentences. C Using the box plot, how can you determine if there are potential outliers? D How does the standard deviation help you to determine concentration of the data and whether or not there are potential outliers? E What does the IQR represent in this problem?
In the 1992 presidential election, Alaska's 40 election districts averaged 2002 votes per district for President Clinton. The standard deviation was 566. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places. Find the third quartile for votes for President Clinton. Round your answer to the nearest whole number.
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.)
A variable is normally distributed with mean 39 and standard deviation 13. Use the Cumulative Z-Score Table to answer the following questions. Write your answers in decimal form using 4 decimal places. a) Find the area under the normal curve to the left of the data value 62.4. b) Find the area under the normal curve to the left of the data value 66,3. c) Find the area under the normal curve to the right of the data. value 51.35. d) Find the area under the normal curve to the right of the date value 43.55. e) Find the area under the normal curve between the data values 43.55 and 66.3.
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 55 ounces and a standard deviation of 6 ounces.Use the Empirical Rule, finda) 99.7% of the widget weights lie between and b) What percentage of the widget weights lie between 43 and 73 ounces? %c) What percentage of the widget weights lie above 49 ?

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