Question

Test the slope of the regression line for the following data. Use α=.01.

x 142 121 103 92 66 29 25

y 26 29 46 70 87 112 125

Do not round the intermediate values. Round your answer to 2 decimal places.)

Observed t = ___

The decision is to reject or fail to reject the null hypothesis

Answer #1

Test the slope of the regression line for the following data.
Use α=.01.
x 140 120 103 92 62 30 24
y 24 29 45 70 88 112 128
(Do not round the intermediate values. Round your answer to 2
decimal places.)
Observed t =
Fail to reject null hypothesis or reject null hypothesis

Open Weight_vs_IQ data.
SETUP: Is it reasonable to assume that the IQ
and weight of a person should not be related? Given the data, your
job is to check if this assertion is indeed reasonable or not.
HINT: Read Lecture 24.
19. What would be the correct
Null-Hypothesis?
a. IQ and Weight should not be related.
b. The population averages are equal.
c. The slope of the regression line is equal to zero.
d. None of these
20. The P-value...

The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of Household
Percent of U.S.
Households
Observed Number
of Households in
the Community
Married with children
26%
104
Married, no children
29%
112
Single parent
9%
32
One person
25%
97
Other (e.g., roommates, siblings)
11%
66
Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...

The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of Household
Percent of U.S.
Households
Observed Number
of Households in
the Community
Married with children
26%
103
Married, no children
29%
118
Single parent
9%
34
One person
25%
90
Other (e.g., roommates, siblings)
11%
66
Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...

The types of browse favored by deer are shown in the following
table. Using binoculars, volunteers observed the feeding habits of
a random sample of 320 deer.
Type of Browse
Plant
Composition
in Study Area
Observed Number of
Deer
Feeding on This Plant
Sage brush
32%
103
Rabbit brush
38.7%
117
Salt brush
12%
46
Service berry
9.3%
29
Other
8%
25
Use a 5% level of significance to test the claim that the
natural distribution of browse fits the...

Consider the following data on x = rainfall volume (m3) and y =
runoff volume (m3) for a particular location. x 5 12 14 16 23 30 40
47 55 67 72 83 96 112 127 y 4 10 13 14 15 25 27 45 38 46 53 67 82
99 105 Use the accompanying Minitab output to decide whether there
is a useful linear relationship between rainfall and runoff. The
regression equation is runoff = -1.82 + 0.839 rainfall...

AM -vs- PM sections of Stats - Significance test (Raw
Data, Software Required):
There are two sections of statistics, one in the afternoon (PM)
with 30 students and one in the morning (AM) with 22 students. Each
section takes the identical test. The PM section, on average,
scored higher than the AM section. The scores from each section are
given in the table below. Test the claim that the PM section did
significantly better than the AM section, i.e., is...

Open Three Hospitals data. SETUP: It is
believed that the number of injuries recorded in hospital 1 is
different from the number of injuries recorded in hospital 2. Given
the data your job is to confirm or disprove this assertion.
10. What test/procedure did you perform? (4
points)
a. Regression
b. Two sided t-test
c. One sided t-test
d. Confidence Interval
11. What is the statistical interpretation? (4
points)
a. Average of data is inconsistent with the claim
b. P-value...

A physiological experiment was concluded to study the effect of
various factors on a pulse rate. The participants took their own
pulse. They then were asked to flip a coin. If their coin came up
head, they were to run in place for 1 minute. Then everyone took
their own pulse again. The dataset pulse.txt, available from
Moodle, contains the following variables: ROW- id numbers, from 1
to 92; PULSE1- first pulse rate; PULSE2- second pulse rate;
RAN-1=ran in place,...

please write the code in java so it can run on jGRASP import java.util.Scanner;
2 import java.io.*; //This imports input and output (io)
classes that we use
3 //to read and write to files. The * is the
wildcard that will
4 //make all of the io classes available if
I need them
5 //It saves me from having to import each
io class separately.
6 /**
7 This program reads numbers from a file, calculates the
8 mean (average)...

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