A pet association claims that the mean annual cost of food for dogs and cats are the same. The results for samples for the two types of pets are shown below. At a = 0.05, can you reject the pet association's claim? Assume the population variances are not equal. Assume the samples are random and independent, and the populations are normally distributed. Complete parts (a) through (e) below. Dogs Cats X, = $265 X2 = $230 S1 = $44 S2 = $40 n, = 17 n2 = 14 OA. t>6 OB. t< -6 C. t< -, t>to OD. -6
A pet association claims that the mean annual cost of food for dogs and cats are the same. The results for samples for the two types of pets are shown below. At a = 0.05, can you reject the pet association's claim? Assume the population variances are not equal. Assume the samples are random and independent, and the populations are normally distributed. Complete parts (a) through (e) below. Dogs Cats X, = $265 X2 = $230 S1 = $44 S2 = $40 n, = 17 n2 = 14 OA. t>6 OB. t< -6 C. t< -, t>to OD. -6
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter4: Eigenvalues And Eigenvectors
Section4.6: Applications And The Perron-frobenius Theorem
Problem 22EQ
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A pet association claims that the mean annual cost of food for dogs and cats are the same. The results for samples for the two types of pets are shown below. At a = 0.05, can you reject the pet
association's claim? Assume the population variances are not equal. Assume the samples are random and independent, and the populations are normally distributed. Complete parts (a) through
(e) below.
Dogs
Cats
X4
= $265
= $230
S1 = $44
S, = $40
n1
17
n2 =
14
O A. t>to
O B. t< - to
C. t< -to, t>to
O D. - to <t<to
(c) Find the standardized test statistic.
t3=
(Type an integer or decimal rounded to three decimal places as needed.)
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