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noname [10]
3 years ago
9

A Local group claims that the police issue more than 60 speeding tickets a day in thire area. To prove their point, they randoml

y select 2 weeks. Their yields the number of tickets issued for each day. The data are listed below. at a =0.01, test the group's claim using P- value.
70 48 41 68 69 55 70

57 60 83 32 60 72 58

the mean = 60.2

Standard D= 12.9
Mathematics
1 answer:
MissTica3 years ago
7 0

Answer:

The group's claim is not supported at 1% significance level.

Step-by-step explanation:

given that a local group claims that the police issue more than 60 speeding tickets a day in thire area

The data they collected for 2 weeks is given below:

70 48 41 68 69 55 70

57 60 83 32 60 72 58

\bar x = 60.2\\s = 12.9\\n=14

Std error of mean = \frac{12.9}{\sqrt{14} } \\=3.4477

H_0: \bar x=60\\H_a: \bar x >60

(Right tailed test at 1% significance level)

Mean difference = 0.10

Test statistic t with df 13 = mean difference/std error

= 0.029

p value = 0.4886

Since p >0.01, we accept null hypothesis

The group's claim is not supported at 1% significance level.

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