Practice Categorical Data Examples and Improve Your Skills

Recent questions in Analyzing categorical data

wittyrocks123 2022-09-23

A group of investigators measured calcium intake in three different treatment groups. The data are provided in Table 1. The researchers used a one-way ANOVA test to compare the difference between three treatment groups. Using alpha=0.05, what would be their conclusion?

Fail to reject the null hypothesis and conclude that the three group have the same mean of Calcium measurement. Stop there.
Fail to reject the null hypothesis and conclude that the three groups do not have the same mean of Calcium measurement. Stop there.
Reject the null hypothesis and conclude that the three groups do not have the same mean of Calcium measurement. Move on with multiple comparisons.
Reject the null hypothesis and conclude that the three groups have the same mean of Calcium measurement. Move on with multiple comparisons.

edubthegreat19 2022-05-11

Heights for men are distributed according to a Normal model, with an average of 69 inches and a standard deviation of 3
inches. The tallest 30% of men will be at what height or taller? Round your answer to the nearest hundredth (two decimal
places), if necessary.

iohanetc 2021-10-11

A of 100 12oz ketchup bottles was taken.
1. If $μ = 12.02 and σ = 0.01$ . With what confidence can we claim that 12.02 oz is within 0.001 of the true mu amount of ketchup in a bottle?
2. If bottles yielded $σ = 0.1 o z$ ., what is the 99% confidence interval for the standard deviation of the amount of ketchup in a bottle?

lwfrgin 2021-10-08

State whether the investigation in question is an observational study or a designed experiment. Justify your answer in each case. In the article by P. Ridker et al. titled "A Randomized Trial of Low-dose Aspirin in the Primary Prevention of Cardiovascular Disease in Women", the researchers noted that "We randomly assigned 39,876 initially healthy women 45 years of age or older to receive 100 mg of aspirin or placebo on alternate days and then monitored them for 10 years for a first major cardiovascular event (i.e., nonfatal myocardial infarction, nonfatal stroke, or death from cardiovascular causes)."

Burhan Hopper 2021-05-08

The analysis of shafts for a compressor is summarized by conformance to specifications: roundnessconforms yes no surface finish yes 3455 conforms no 128
(a) If we know that a shaft conforms to roundness requirements, what is the probability that it conforms to surface finish requirements?
(b) If we know that a shaft does not conform to roundness requirements, what is the probability that it conforms to surface finish requirements?

Marvin Mccormick 2021-05-08

For the poll described in the Chapter problem, assume that the respondents had been asked for their political party affiliation, and the responses were coded as 0 (for Democrat), 1 (for Republican), 2 (for Independent), or 3 (for any other response). If we calculate the average (mean) of the numbers and get 0.95, how can that value be interpreted?

nitraiddQ 2021-05-05

A palindromic number is a natural number whose reversal is identical to itself. For instance, the numbers: 1, 99, 101, 2112, 44444 are respectively palindromic numbers of 1, 2, 3, 4, and 5 digits. How many palindromic numbers between 1000 and 1000 000 are there?

sibuzwaW 2021-03-12

For each of the following variables, indicate whether they are categorical or numerical. Also, write down what type of graph can be drawn for each.
a) Position of a university staff members.
b) Weight of participants.
C Air temperature on the Celsius scale
D) The daily number of code lines written by a programmer

geduiwelh 2021-03-12

Is the mode the measure of central tendency that is best used with a skewed distribution?

Elleanor Mckenzie 2021-03-09

Why is hair color classified as categorical data?

Ernstfalld 2021-03-06

Qualitative data that cannot be ranked is called categorical, nominal
1. True
2. False

banganX 2021-03-06

Which statement best characterizes the definitions of categorical and quantitative data?
Quantitative data consist of numbers, whereas categorical data consist of names and labels that are not numeric.
Quantitative data consist of numbers representing measurements or counts, whereas categorical data consist of names or labels
Quantitative data consist of values that can be arranged in order, whereas categorical data consist of values that cannot be arranged in order.
Quantitative data have an uncountable number of possible values, whereas categorical data have a countable number of possible values.

Ayaana Buck 2021-03-02

Let g be an element of a group G. If $| G |$ is finite and even, show that $g \neq 1$ in G exists such that $g^{2} = 1$

rocedwrp 2021-02-25

The equation $a = 50 h + 50$ represents the amount a that an air-conditioning repair company charges for h hours of labour. Make a table and sketch a graph of the equation

remolatg 2021-02-24

Find each data set's mean, median, mode, and range.
a. 7, 12, 1, 7, 6, 5, 11
b. 85, 105, 95, 90, 115
c. 10, 14, 16, 16, 8, 9, 11, 12, 3
d. 10, 8, 7, 5, 9, 10, 7
e. 45, 50, 40, 35, 75
f. 15, 11, 11, 16, 16, 9

Maiclubk 2021-02-24

Tuddenham and Snyder obtained the following results for 66 California boys at ages 6 and 18 (the scatter diagram is football-shaped):
average height at $6 \approx 3$ feet 10 inches, $S D \approx 1.7$ inches
average height at $18 \approx 5$ feet 10 inches, $S D \approx 2.5$ inches, $r \approx 0.80$
a) Find the r.m.s. error for the regression prediction of height at 18 from height at 6. b) Find the r.m.s. error for the regression prediction of height at 6 from height at 18.

allhvasstH 2021-02-20

For the chi-square tests in the analysis of categorical data, the rejection region
1.is always located in the lower tail of the distribution.
2.is always equally split in the two tails of the distribution.
3.is always located in the upper tail of the distribution.
4.depends on the probability of a type II error.

Yulia 2021-02-13

Let N(x) be the statement “x has visited North India,” where the domain consists of the students in your section. Express each of these quantifications in English. $a) \exists x N (x), b) \forall x N (x), c) \neg \exists x N (x), d) \exists x \neg N (x), e) \neg \forall x N (x), f) \forall x \neg N (x)$

Chardonnay Felix 2021-02-12

Prove the following statement: if x is irrational and y is irrational then x+y is irrational

A categorical data analysis example is vital for those college students who are facing the necessity of answers to their questions as they need immediate help. The majority of categorical data questions that you will see below will not differ much from those questions that you already have. Just remember that you should deal with the variable responses by grouping your findings into a clear set of matters where variables are ordered like your sample group. It is essential for Sociology or Nursing where different mathematical comparisons must be made. Do not forget about an unordered category, too.

Learn Categorical Data Analysis Techniques with Examples