subject
Mathematics, 09.04.2020 19:36 joejoefofana

Bags of a certain brand of tortilla chips claim to have a net weight of 14 ounces. Net weights actually vary slightly from bag to bag and are normally distributed with mean μ. A representative of a consumer advocate group wishes to see if there is any evidence that the mean net weight is different with advertised and so intends to test the hypotheses:

H0:μ=16, Ha:μ<16To do this, he selects 24 bags of this brand at random and determines the net weight of each. He finds the sample mean to be ¯x = 15.68 and the sample standard deviation to be s = 0.64. Based on this data:A) We would reject H0 at significance level 0.10 but not at 0.05.B) We would reject H0 at significance level 0.05 but not at 0.025.C) We would reject H0 at significance level 0.025 but not at 0.01.D) We would reject H0 at significance level 0.01.Suppose we were not sure if the distribution of net weights was Normal. In which of the following circumstances would we not be safe using a t-procedure in this problem?A) The mean and median of the data are nearly equal. B) A histogram of the data shows moderate skewness. C) A stemplot of the data has a large outlier. D) The sample standard deviation is large.

ansver
Answers: 2

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 15:00, pearlielb
Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race
Answers: 2
image
Mathematics, 21.06.2019 17:00, tai1611
Three cylinders have a volume of 2836 cm^3. cylinder a has a height of 900 cm. cylinder b has a height of 225 cm. cylinder c has a height of 100 cm. find the radius of each cylinder. use 3.14 as an approximate for π
Answers: 1
image
Mathematics, 21.06.2019 18:00, YoungLarQ
What is the missing step in this proof ?
Answers: 1
image
Mathematics, 21.06.2019 18:00, thompsonmark0616
What is the value of x in the equation 2(x-4) = 4(2x + 1)?
Answers: 1
You know the right answer?
Bags of a certain brand of tortilla chips claim to have a net weight of 14 ounces. Net weights actua...

Questions in other subjects:

Konu
Mathematics, 28.10.2020 02:40
Konu
Mathematics, 28.10.2020 02:40
Konu
Biology, 28.10.2020 02:40