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Asked Nov 12, 2019

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I need help with question 7 please

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Step 1

**Paired t-test statistic:**

To test a hypothesis regarding whether the difference between a paired set of *n* observations (*x _{i}*,

Step 2

**Null and alternative hypotheses:**

H_{0}: µ_{d}=0

H_{a}: µ_{d}>0

**Preliminary calculation:**

The following table shows the necessary calculations to find the test statistic:

Step 3

**Test statistic:**

The test statistic is calc...

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