A.
_(_())_(_()) What is the P-value of a trutimic of 20078 press 65 dif act its
B. and
Reject the mull hypothesis.
?
Fail to reiget the mull hypother belain cip a sicher sure the
perply.ye
5. Ir can be difficult for a Democrat or Republican political candidate to exape the politics opinion of the candidate's party. Public perception of the candidate tender to correspond to public perceptions of the candidate's party, but sometimes cand idates are dignificandly more or less popular than their parties. In this exercles, you'll compute feeling thermometer rating for Joe Biden before the 2020 election (fi_biden_pre) to contemporaneous feeling thermometer ratings of the Democratic Party (ft_dem) as measured in the NES Dataset.
Conduct a two-sample difference-of-means test to assess whether the mean of the NES Durase's ft_biden_pre variable is significantly greater than the mean of its ftcdern variable. For this analysis, don'rassume that the variables have equal variances, but be ware to weight observations using the wi variable.
^(16)
A. Start with descriptive statistics. The observed mean of fi bilen_pre is observed mean of ft_dem is
_(_())_(_())
_(_())_(_()) The
B. The observed difference between the mean Biden feeling thermometer icore and the mean Democratic Party feeling thermometer score is (based on the
H_(0) assumption that there is no difference) is
_(_())_(_()) The expected difference of means
C. Which of the following embodics the research hypothen, (Fis) (oct one)
_(_())_(_())
((
mean _(()
bide )- mean _(()
dem )>0
E. Use inferential statistics to help evaluate the hypothesis. The t-tes
difference is What is the P-value for this t-test statisticl mean
_(wim )- mean
_(m. )<0
((
mean _(()
wan )- mean _(()
dim )=0
difference is
_(_())_(_()) right P-value, you need to decide whether to use the right-tail, left-tail, or two-tail value. To report the
F. Based on these data, did Americans view Biden significantly mote favorably than the Democratic Party? (select one)
Yes No