Question
An investigative journalist is writing a report about the amount of sodium in snack foods. They believe name-brand snack foods have higher sodium levels than
An investigative journalist is writing a report about the amount of sodium in snack foods. They believe name-brand snack foods have higher sodium levels than store-brand snack foods. They randomly select 8 pairs of common snack food types (purchasing a name-brand and store-brand for each type) and use a lab to determine how much sodium is in every 100 grams of snack food.
Note: d=(Name-brandStore-brand)
Name-brand (in milligrams) | Store-brand (in milligrams) |
---|---|
519 | 519 |
469 | 462 |
418 | 410 |
328 | 327 |
741 | 740 |
637 | 632 |
282 | 270 |
554 | 541 |
Assume that both of the populations are normally distributed. At the 0.10 level of significance, is there sufficient evidence to show there are higher sodium levels for name-brand snacks than store-brand snacks?
Find the test statistic, t0. Round your answer to the nearest hundredth.
Provide your answer below:
test statistic =
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