A technician compares repair costs for two types of microwave ovens (type I and type II). He believes that the repair cost for type I ovens is greater than the repair cost for type Il ovens. A sample of 38 type I ovens has a mean repair cost of $89.77, with a standard deviation of $21.82. A sample of 54 type II ovens has a mean repair cost of $86.89, with a standard deviation of $13.00. Conduct a hypothesis test of the technician's claim at the 0.05 level of significance. Let Hi be the true mean repair cost for type I ovens and µ2 be the true mean repair cost for type II ovens. Step 1 of 4: State the null and alternative hypotheses for the test. O Tables E Keypad Answer Keyboard Shortcuts - 42 Ha: Hi >

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A technician compares repair costs for two types of microwave ovens (type I and type II). He believes that the repair cost for type I ovens is greater than the repair cost
for type Il ovens. A sample of 38 type I ovens has a mean repair cost of $89.77, with a standard deviation of $21.82. A sample of 54 type Il ovens has a mean repair
cost of $86.89, with a standard deviation of $13.00. Conduct a hypothesis test of the technician's claim at the 0.05 level of significance. Let µi be the true mean repair
cost for type I ovens and µ2 be the true mean repair cost for type Il ovens.
Step 1 of 4: State the null and alternative hypotheses for the test.
E Tables
в Кеурad
Answer
Keyboard Shortcuts
Но: и
Ha: H1
Transcribed Image Text:A technician compares repair costs for two types of microwave ovens (type I and type II). He believes that the repair cost for type I ovens is greater than the repair cost for type Il ovens. A sample of 38 type I ovens has a mean repair cost of $89.77, with a standard deviation of $21.82. A sample of 54 type Il ovens has a mean repair cost of $86.89, with a standard deviation of $13.00. Conduct a hypothesis test of the technician's claim at the 0.05 level of significance. Let µi be the true mean repair cost for type I ovens and µ2 be the true mean repair cost for type Il ovens. Step 1 of 4: State the null and alternative hypotheses for the test. E Tables в Кеурad Answer Keyboard Shortcuts Но: и Ha: H1
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