The manager of a health insurance company in Toronto wonders whether the members needed more chiropractic help in 2018 than in 2017

Hypothesis test (2- sample)

The manager of a health insurance company in Toronto wonders whether the members needed more chiropractic help in 2018 than in 2017, on average. He found a random sample of those who were treated by chiropractic doctors in both years. Data provided in TERMTESTDATA file. Perform a Hypothesis test to check whether annual expenses increased, on average. For the test use Data Analysis t-Test: Paired Two Sample for Means and 1% significance level.

Annual expenses
2017	2018
340	374
560	476
816	850
238	136
374	340
646	748
612	510
136	162
850	816
1054	1190
298	238
272	366
578	510
340	408
476	510
748	680
204	170
774	816
510	570
408	468

Expert Solution

d = 2017 - 2018

We find result using R:-

Decision:-

Conclusion:-

There is no sufficient evidence to support the claim that annual expenses increased.

orchestra answered 2 years ago

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