2. Classify the nature of each of the following statements as inferential or descriptive.a) A family of four or more averages Php 600.00 a week on grocery purchasesb) Sixty percent of all grocery purchases are unplanned.c)In 2018, at a certain store, a total of 18,143 grocery items were purchased.d) Each year 41% of new products introduced in department stores failede) e) The number of different grocery items stocked in a typical store in 2017 was10,430

Descriptive Statistics : In descriptive statistics we summarize the characteristics of the data…

Answered: 2. Classify the nature of each of the…

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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3. Data on different types of flat fish are showm below. Construct a (relative) irequency table and a bar chart. Flounder Halibut | Turbot | Turbot | Flounder Flounder Turbot Flounder Turbot Sole Sole Turbot Halibut Sole Flounder Turbot Sole Halibut Sole Flounder
In a survey of 10 readers, the number of books read per month were recorded as: 20 15 17 25 9 11 14 15 23 17 Calculate each of the following, correct to one decimal place. a) Mean b) Median c) Mode please write clearly thank you.
1. A consumer group wishes to estimate the average time a person waits in line for the branches of McBee fastfood chain in Makati City. To do this, they would like to observe the waiting time in some of the chain's branches. After some preliminary research, they were able to obtain the following list of McBee branches in Makati: No. Location No. Location 01 Makati Cinema Square 11 Landmark 02 Guadalupe Commercial Center 12 PRC Sta. Ana 03 Glorietta 3 13 Jaka Building 04 Greenbelt 1 14 Power Plant Mall 05 Jupiter Street 15 SM Makati 06 Glorietta 1 16 Valero People Support Kingswood Evangelista SM Cyberzone 2 07 Ayala Avenue 17 08 Madrigal Building 18 09 Paseo Center 19 10 SGV Building 20 a. Lester puts the numbers 01 to 20 in a bag. Without looking, he draws the numbers 11, 19, and 03. Which branches will be part of his sample? b. If Lester decides to use systematic random sampling to get his sample size of 4, and he draws the number 06 as his first McBee branch, which other branches…
1
An association has ten members. Their annual income are: Income $14,000 $34,000 $62,000 $129,000 $16,000 $41,000 $73,000 $21,000 $23,000 $28,000 What is the total amount of income comprising the highest quintile of this income distribution?
An epidemiologist plans to conduct a survey to estimate the percentage of women who give birth. How many women must be surveyed in order to be 90% confident that the estimated percentage is in error by no more than one percentage point? Complete parts (a) through (c) below. a. Assume that nothing is known about the percentage to be estimated. n= (Round up to the nearest integer.) b. Assume that a prior study conducted by an organization showed that 83% of women give birth. n= (Round up to the nearest integer.) c. What is wrong with surveying randomly selected adult women? O A. Randomly selecting adult women would result in an overestimate, because some women will give birth to their first child after the survey was conducted. It will be important to survey women who have already given birth. B. Randomly selecting adult women would result in an underestimate, because some women will give birth to their first child after the survey was conducted. It will be important to survey women who…
11) 14 students on the track team recorded the following number of seconds as their best time for the 100-yard dash: 13.5, 13.7, 13.1, 13.0, 13.3, 13.2, 13.0, 12.8, 13.4, 13.3, 13.1, 12.7, 13.2, 13.5 Find the interquartile range.
3.What levelof measurement –nominal, ordinal, interval, or ratio –do the following represent and WHY?a. number ofwebsites visited each dayb. 20% strongly agreed, 13% agreed, 5% disagreed, ..
1.How many elements are in the provided data set? 2.How many are the variables? 3.How many variables are qualitative – categorical? 4.How many variables are quantitative – discrete? 5.How many variables are quantitative – continuous? What is the data set about? 1.Sorting: Sort the data set according to ID sequence, from smallest to biggest. Following the sorted unique ID number from smallest to biggest, what is the complete data for 100th observation? 2.Filtering: By filtering the ”race” variable, identify the number of a) White students, b) Hispanic, c)African-American and d) Asians; What is the ratio/percentage of Asians to the total population given the data set?
8.

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