32. What probability value would be needed to complete the following probability distribution?
x -5 -1 0 1 4
P(x) 0.13 0.25 0.12 0.30

25. An apartment building has the following apartments:
1 bedroom 2 bedroom 3 bedroom
1st floor 3 1 1
2nd floor 2 2 2
3rd floor 1 4 1
If an apartment is selected at random, what is the probability that it is not a 2 bedroom apartment on the 3rd floor?
26. A coin is tossed 4 times. Find the probability that the 5th toss is a tail, given that the first 4 tosses were all tails.
.
44.

A) Rejecting the null hypothesis because 13.0 is less than 14.0
B) Accepting the null hypothesis because 13.0 is less than 16.0
C) Accepting the null hypothesis because 16.0 is more than 14.0
D) There is insufficient information to make any conclusions about the hypothesis test

Solution Preview

Solution is attached.

32. What probability value would be needed to complete the following probability distribution?
x -5 -1 0 1 4
P(x) 0.13 0.25 0.12 0.30

For a probability distribution, we have

Thus the P(X=1) = 1-P(X=-5)-P(X=-1)-P(X=0)-P(X=4) = 1-0.80 =0.20

25. An apartment building has the following apartments:
1 bedroom 2 bedroom 3 bedroom
1st floor 3 1 1
2nd ...

Solution Summary

Step by step method for computing test statistic t test I s given in the answer.

Question: Determine the p-value for each of the following hypothesis-testing situations:
a. H0: p = 0.25 and Ha: p does not = 0.25; z test value = 1.84
b. H0: u >/= 13.5 and Ha: u < 13.5; t test value = -1.94 d.f. = 10

Please see the attached file.
A hypothesistest is used to test a claim. You get 1.75 as your test statistic and 1.59 as your critical value for a right-tailed test. Which of the following is the correct decision statement for the test?
A. Reject the null hypothesis
B. Claim the null hypothesis i

A pharmaceutical manufacturer is concerned that the mean impurity concentration in pills should not excess 2%. It is known that impurity concentrations follow a normal distribution with a population standard deviation 0.32%. A random sample of 64 pills from a production run was checked, and the sample mean impurity concentration

Please see the attached file.
4.
(a) What is the meaning of the term "null hypothesis".
(b) How do you know when to perform a "left-tailed" test in a hypothesis-testing situation versus a "right-tailed" or "two-tailed" test?
5. A hypothesistest is used to tes

Please help me to understand how to perform the given testing method:
Perform the following hypothesistest using the 5 step hypothesistesting method:
Null Hypothesis, Ho: b = 0
Alternate Hypothesis, Ha: b # 0
Mean = 1.87
Standard Deviation = 0.63
Sample Size = 3
Significance Level, alpha = 0.05

A study of 20 families in a certain large city showed that the average income was $33,210 in 2000 with a standard deviation of $1800. Test the hypothesis that the true average income in this city was actually $31,000 against the hypothesis that it was more. Use a level of significance of 5% (hint: This is a one-sided test).

pop. size crime
Nashville 569891 46016
Knoxville 173890 11983
Chattanooga 155554 15867
Using the above data write a hypothesis and preform an ANOVA test in excel. Test whether or not the crime rate is different in three different size cities. 0.05.

For now, please formulate a hypothesis statement that will be the equivelent, nonparametric test of hypothesis from the attached ANOVA testing and results. I need a hypothesis with the same research question but in nonparametric test. Also provide the type of nonparametric test should be used.
1.Please provide hypothesis stat

Please help understand these questions:
1) What is the difference between hypothesis and theory? If there is a difference between the two, what comes first - hypothesis or theory?
2) Why is it important to test a hypothesis? Give the rationale. Can we conduct research without hypothesistesting? Can you think of an example