Question

# Vita Pills were advertised as having 751 mg of vitamin B3 per pill. A marketing firm...

Vita Pills were advertised as having 751 mg of vitamin B3 per pill. A marketing firm hypothesizes that the amount of vitamin B3 is less than what is advertised. What can be concluded with α = 0.10. The vitamin B3 content per pill from a sample of pills is as follows:
713, 761, 716, 721, 751, 721, 711, 741.

a) What is the appropriate test statistic?
---Select--- na z-test One-Sample t-test Independent-Samples t-test Related-Samples t-test

b)
Population:
Sample:

c) Obtain/compute the appropriate values to make a decision about H0.
(Hint: Make sure to write down the null and alternative hypotheses to help solve the problem.)
critical value =  ; test statistic =
Decision:  ---Select--- Reject H0 Fail to reject H0

d) If appropriate, compute the CI. If not appropriate, input "na" for both spaces below.
[  ,  ]

e) Compute the corresponding effect size(s) and indicate magnitude(s).
If not appropriate, input and/or select "na" below.
d =  ;   ---Select--- na trivial effect small effect medium effect large effect
r2 =  ;   ---Select--- na trivial effect small effect medium effect large effect

f) Make an interpretation based on the results.

The amount of vitamin B3 in Vita Pills is significantly more than the advertised claim.The amount of vitamin B3 in Vita Pills is significantly less than the advertised claim.    The amount of vitamin B3 in Vita Pills is not significantly different than the advertised claim.