Last year a company received 50 complaints concerning carpet installation. The data in the accompanying table represents the number of days between the receipt of a complaint and the resolution of the...

Last year a company received 50 complaints concerning carpet installation. The data in the accompanying table represents the number of days between the receipt of a complaint and the resolution of the complaint.

Days between receipt and resolution of complaint
49	64	9	33	136	31	24	155	5	118
73	78	21	22	19	115	113	106	22	87
85	40	25	23	10	11	6	160	34	30
29	28	22	1	10	12	17	10	14	18
29	52	35	24	35	28	27	22	38	60

The supervisor claims that the mean number of days between the receipt of a complaint and the resolution of the complaint is 40 days. At the 0.10 level of significance, is there evidence that the claim is not true (that is, that the mean number of days is different from 40)?

State the null and alternative hypotheses.

H0:

H1:

Determine the test statistic.

The test statistic is ___. (Round to four decimal places as needed.)

Find the p-value.

p-value=___ (Round to four decimal places as needed.)

State the conclusion

___A___ H0. There is __B__ evidence to conclude that the mean number of days is different from 40.

A: Do not reject or reject

B: insufficient or suffcient

Jun 02, 2022

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Last year a company received 50 complaints concerning carpet installation. The data in the accompanying table represents the number of days between the receipt of a complaint and the resolution of the...

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