A manufacturer of a pasta sauce claims that there 471mg of sodium in a half-cup (125mL) of the sauce. To test this claim, a random sample 23 jars of pasta sauce are analyzed and a mean of 498.78mg of sodium is found with a standard deviation of 46.94mg. Assume the amount of sodium follows a normal distribution.
-The null and alternative hypotheses for the possibility that sodium levels are higher than the manufacturer's claims is _____.

Question

Quizplus · Accepted Answer

The correct hypothesis testing setup for investigating if the sodium levels are higher than the manufacturer's claim is: Null hypothesis (H0) states the mean sodium level is equal to the claimed amount (μ = 471mg), and the alternative hypothesis (Ha) states the mean sodium level is greater than the claimed amount (μ > 471mg).

A Manufacturer of a Pasta Sauce Claims That There 471mg