Carmen has taken out a loan for $800 to buy a car. She plans to pay back the loan at a rate of $40 per month. Ramona has borrowe
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Answer:
Claim : The mean weight is greater than 16 ounces
x = 16.05
n = 50
Since n > 30 and population standard deviation is given
So, we will use z test
Substitute the values
Critical value at 0.05 significance level is 1.645
z statistic > critical value
So, we reject the null hypothesis
So, we can conclude that the mean weight is greater than 16 ounces .