Answer:
its 9
Step-by-step explanation:
i pretty sure im right
Answer:
Step-by-step explanation:
try this
take a calculator and do 2 divided by 3
you get 0.66666666666666666666
but now, immediately press the multiplication button,
and type 300 and press enter
the answer is 200
epic
(553-265)/48=6
6 hours spent repairing the car
Answer:
a) yes data is paired
(b) the mean difference is = 7
c) the standard deviation = 3.1623
d) standard error = 1.195
e) the value of the t-statistic = 1.674
f) degrees of freedom does the t-statistic have = 6
g) Is the alternative one or two sided? = Since the researcher wants to know that if campaign is really effective or not so two tailed hypothesis will be used.
h) the p-value associated with this t-statistic = 0.1452
i) what do you conclude? = Since P-value is greater than ∝ = 0.05, so we fail to reject the null hypothesis. That is on the basis of sample evidence we can conclude that campaign is not effective.
Step-by-step explanation:
5Step-by-step explanation: