Insurance adjusters are concerned about the high estimates they are receiving from Jocko’s Garage. To see if the estimates are unreasonably high, each of 10 damaged cars was taken to Jocko’s and to a trusted garage and the estimates recorded. Here are the results:

Jocko's: 500,1550,1250,1300,750,1000,1210,13 00,800,2500

Other: 430,1500,1300,1280,780,870,1120,114 0,650,2290

Use the test of hypothesis procedure to investigate the allegation that Jocko’s Garage over-charges for the car repairs. State the null and alternative hypotheses (H0 and Ha) in a sentence and also using proper Greek symbol(s) for the parameter(s). Show the test statistic calculations with degrees of freedom, and the P-value etc. Use significance level value of 5%. State your conclusion in simple language.

The null hypotesis is not rejected, so, there is not evidence that jocko's garage over - charges for the car repairs.

Step-by-step explanation:

H0 μ=0

Ha μ>0

JockoOtherDifference

50043070

1550150050

12501300-50

1300128020

750780-30

1000870130

1210112090

13001140160

800650150

25002290210

d bar =80

sd = 84.59

t=(d bar - μ)/sd = 0.9457

p-value=P( > 0.9457)= 0.1845 > 5%

The null hypotesis is not rejected, so, there is not evidence that jocko's garage over - charges for the car repairs.

honestly bro aint no one got time to answer these dumb question just do it p***y

step-by-step explanation:

students group

step-by-step explanation:

a person who   joins a party or a seminar can explain his feelings about that particular occasion better more than anyone else.

as bella managed a show for the students in the school and invited students to watch that show

hence

students group will be the best group to survey to find this information