QNT 275 Week 4 Quiz | Assignment Help | University Of Phoenix
- University of Phoenix / QNT 275
- 22 Oct 2018
- Price: $5
- Other / Other
QNT 275 Week 4 Quiz | Assignment Help | University Of Phoenix
1.
Award: 0.50
out of 0.50 points
In the upcoming election for governor, the most recent poll,
based on 900 respondents, predicts that the incumbent will be reelected with 55
percent of the votes. From the 900 respondents, how many indicated that they
would not vote for the current governor or indicated that they were undecided?
2.
Award: 0
out of 0.50 points
A(n) _____________ hypothesis is the statement that is being
tested. It usually represents the status quo, and it is not rejected unless there
is convincing sample evidence that it is false.
3.
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out of 0.50 points
The null hypothesis is a statement that will be accepted only if
there is convincing sample evidence that it is true.
4.
Award: 0
out of 0.50 points
If a population
distribution is known to be normal, then it follows that
5.
Award: 0.50
out of 0.50 points
The diameter of small Nerf balls manufactured overseas is
expected to be approximately normally distributed with a mean of 5.2 inches and
a standard deviation of .08 inches. Suppose a random sample of 20 balls is
selected. Calculate the mean of the sampling distribution of the sample mean.
6. Award: 0.50 out of 0.50
points
It has been reported that the average time to download the home
page from a government website was 0.9 seconds. Suppose that the download times
were normally distributed with a standard deviation of 0.3 seconds. If random
samples of 23 download times are selected, describe the shape of the sampling
distribution and how it was determined.
7.
Award: 0.50
out of 0.50 points
It has been reported that the average time to download the home
page from a government website was 0.9 seconds. Suppose that the download times
were normally distributed with a standard deviation of 0.3 seconds. If random
samples of 36 download times are selected, calculate the mean of the sampling
distribution of the sampling mean.
8.
Award: 0.50
out of 0.50 points
A recent study conducted by the state government attempts to
determine whether the voting public supports a further increase in cigarette
taxes. The opinion poll recently sampled 1,500 voting age citizens. 1,020 of
the sampled citizens were in favor of an increase in cigarette taxes. The state
government would like to decide if there is enough evidence to establish
whether the proportion of citizens supporting an increase in cigarette taxes is
significantly greater than .66. What is the alternative hypothesis?
USA 
India