Question

Questions 39-40: A company claims that their fridges have an average of 22 gallons of useable space inside. You want to see whether they are cheating the consumer. In other words, you want to see if the average usable fridge space is less than what the company advertises. To test this claim, you take a sample of 50 fridges and find the sample mean and sample standard deviation to be 21.2 and 3.0, respectively. 39. What would be the appropriate alternative hypothesis?:* Oa. Ha: V = 22 Ob. Ha:v> 21.2 Oc. Ha:v #22

Answer 1

- we have given claim as Fridges of a company have an arerage of 22 gallons weable space inside. other word we want to see if arenage usable fridge space is space ie less than what the company adverties the the. 22 Giren summary Statisties are na 50 x =2102 and sa3.0 1 The null and alternative hypothesis are Ho! Maa2 Hai NL22 The appropriate alternative hypothesis is 99 Ha! HC22 The correct option is optom e The value of test statistie is teal 21.2 22 - FM si Jn 8.0 1550 al -0-8 3.017.07 106781 יו 0.424264069 -1.88561808 t -1.885 The correct answer opties a

The degrees of freedom are dof a mrla sola 49 2 The paralue for ginen test is paralue a peterlteally pats-1-1.8851) 2 pct S-1.8856) 61 0.03264228 2 0.0326 1. Paralle correct answer is apnen