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We ask if the attitudes toward fuel costs of 100 owners of hybrid electric cars (X¯= 76) are different from those reported in a national survey of owners of non-hybrid cars ((µ = 65 andsx = 24)
We ask if the attitudes toward fuel costs of 100 owners of hybrid electric cars (X¯= 76) are different from those reported in a national survey of owners of non-hybrid cars ((µ = 65 andsx = 24). Higher scores indicate a more positive attitude.
- What is the predicted relationship here?
- Is this a one- or a two-tailed test?
- State the Ha and the H0.
- Compute zobt.
- What is zcrit?
- What do you conclude about attitudes here?
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