Question

Consider the hypotheses shown below. Given that x=41, σ=11, n=32, α=0.05, complete parts a and b.

H0:μ ≤ 38

H1: μ > 38

a. What conclusion should be drawn?

b. Determine the p-value for this test.

a. The z-test statistic is What? . (Round to two decimal places as needed.)

The critical z-score(s) is(are) What? . (Round to two decimal places as needed. Use a comma to separate answers as needed.)

Because the test statistic ▼ (is greater than the critical value, is less than the critical value, falls within the critical values, does not fall within the critical values) pick answer, ▼ (do not reject, reject the null hypothesis.) pick answer

b. The p-value is What? . (Round to three decimal places as needed.)

Answer #1

Consider the hypotheses shown below. Given that x overbare=57,
sigma=11, n=33, alph=0.05, complete parts a and b. Upper H 0:
muless than or equals55 Upper H 1: mugreater than55 a. What
conclusion should be drawn? b. Determine the p-value for this
test. a. The z-test statistic is ? (Round to two decimal places
as needed.) The critical z-score(s) is(are) ? (Round to two
decimal places as needed. Use a comma to separate answers as
needed.) Because the test statistic does...

Consider the hypotheses shown below. Given that x
overbarequals41, sigmaequals13, nequals36, alphaequals0.10,
complete parts a and b. Upper H 0: muless than or equals39 Upper H
1: mugreater than39 a) What conclusion should be drawn? b)
Determine the p-value for this test.
a) The z-test statistic is .92 . . (Round to two decimal
places as needed.) The critical z-score(s) is(are) ?
fail to reject or reject and why
p value?

Consider the hypotheses below.
H0:μ=50
H1:μ≠50 Given that x=52, s=8, n=20, and α=0.10, answer the
questions below.
a. What conclusion should be drawn?
b. Use technology to determine the p-value for this test.
a. Determine the critical value(s). The critical value(s)
is(are) . (Round to three decimal places as needed. Use a comma to
separate answers as needed.)
Determine the test statistic, t-x= Round to two decimal places
as needed.)
What conclusion should be drawn? Choose the correct answer
below....

Consider the following hypothesis test. Given that n = 84, σ =
8, x = 49.9, and α = 0.01, complete parts a through d below.
H0: μ ≤ 47
HA: μ > 47
a. State the decision rule in terms of the critical value(s) of the
test statistic.
Reject the null hypothesis if the calculated value of the test
statistic, (1)_________ is (2)______________ the critical
value(s),____________ . Otherwise, do not reject the null
hypothesis.
(Round to two decimal places...

Consider the hypotheses shown below. Given that x
overbarequals113, sigmaequals27, nequals46, alphaequals0.01,
complete parts a and b. Upper H 0: muequals120 Upper H 1: munot
equals120
a) The z-test statistic is?
(Round to two decimal places as needed.)
b)The critical z-score(s) is(are) ?
(Round to two decimal places as needed.)
C)Reject or fail to reject, why or why not?
D)p-value?
(Round to four decimal places as needed.)

10. Assume that the significance level is α=0.05. Use the given
statement and find the P-value and critical value(s).The test
statistic of z= −1.85 is obtained when testing the claim that
p=1/5.
P-values= ___
(Round to four decimal places as needed.)
The critical value(s) is/are z=_____
(Round to two decimal places as needed. Use a comma to separate
answers as needed.)
11. Assume that the significance level is α=0.01. Use the given
information to find the P-value and the critical...

Suppose a university advertises that its average class size is
32 or less. A student organization is concerned that budget cuts
have led to increased class sizes and would like to test this
claim. A random sample of 39 classes was selected, and the average
class size was found to be 34.7 students. Assume that the standard
deviation for class size at the college is 7 students. Using
α=0.01, complete parts a and b below.
a. Does the student organization...

A sporting goods store believes the average age of its customers
is 36 or less. A random sample of 38 customers was surveyed, and
the average customer age was found to be 38.9 years. Assume the
standard deviation for customer age is 9.0 years. Using α=0.01,
complete parts a and b below.
a. Does the sample provide enough evidence to refute the age
claim made by the sporting goods store?
Determine the null and alternative hypotheses.
H0: μ ▼ less...

Suppose the coffee industry claimed that the average adult
drinks 1.7 cups of coffee per day. To test this claim, a random
sample of 50 adults was selected, and their average coffee
consumption was found to be 1.9 cups per day. Assume the standard
deviation of daily coffee consumption per day is 0.5 cups. Using
alpha=0.01, complete parts a and b below.
a. Is the coffee industry's claim supported by this
sample?
Determine the null and alternative hypotheses.
The z-test...

Consider the hypotheses shown below. Given that
x overbarxequals=41,
sigmaσequals=13,
nequals=36,
alphaαequals=0.10,
complete parts a and b.
Upper H 0H0:
muμless than or equals≤39
Upper H 1H1:
muμgreater than>39
a) What conclusion should be drawn? b) Determine the p-value
for this test.
A) z-test statistic is?
b) P value is?

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