Question

find the critical value of t for a 90% confidence interval with a df=6

Answer #1

**the critical
value of t for a 90% confidence interval with df =6 is:
1.943** **()**

[ explanation:-

confidence level (c) =90% = 0.90

level of significance () = (1-c) = (1-0.90) = 0.10

*using t distribution
table for df = 6, alpha = 0.10 , for both tailed test* or
*in any blank cell of excel
type =T.INV.2T(0.1,6)* ]

*** if you have any doubt regarding the problem please write it
in the comment box.if you are satisfied please give me a
**LIKE** if possible...

a) The critical value of t for a 90% confidence interval with
df=7.
b) The critical value of t for a 98% confidence interval with
df=108.

Find the critical value t* for the following situations.
a) a 98% confidence interval based on df=21
b) a 95% confidence interval based on df=5

you are calculating a confidence interval for the population
mean. Find the critical value t* from the t-Distribution Critical
Values table for each of the following situations
A 95% confidence interval based on n = 12 observations.
A 99% confidence interval from a sample of two observations.
A 90% confidence interval from a sample of size 1001.
2. Suppose you conduct a hypothesis test for the following
hypotheses from a sample of n = 25 observations, and you calculate
a...

What critical value t* from the t-table would you use for a
confidence interval for the mean of the population in each of the
following situations? NOTE: The critical value is just another name
for the t* values we read off from the type of T Table you have in
your notes. (Use 3 decimal places)
(a) A 95% confidence interval based on 4 observations
(b) A 99% confidence interval from an SRS of 9 observations
(c) An 90% confidence...

Determine the t critical value for a two-sided
confidence interval in each of the following situations. (Round
your answers to three decimal places.)
(a) Confidence level = 95%, df = 5
(b) Confidence level = 95%, df = 15
(c) Confidence level = 99%, df = 15
(d) Confidence level = 99%, n = 10
(e) Confidence level = 98%, df = 21
(f) Confidence level = 99%, n = 34

Find the critical value tα to be
used for a confidence interval for the mean of the population in
each of the following situations.
(a) a 95% confidence interval based on n = 12
observations
(b) a 90% confidence interval from an SRS of 22 observations
(c) an 80% confidence interval from a sample of size 40

1) Find the critical value t (a/2) needed to construct a
confidence interval of the given level with the given sample size.
Round the answers to three decimal places
a) 98% sample size 11
critical value-
b) for level 95% and sample size 25
critical value-
c)for level 99% and sample size 14
2) a sample of size n equals 45 has a sample mean X equals 56.9
and sample standard deviation s equals 9.4.
construct a 99% confidence interval...

Find the critical value
t/α2
needed to construct a confidence interval of the given level
with the given sample size. Round the answers to three decimal
places.
(a) For level
99.5%
and sample size
6
(b) For level
95%
and sample size
15
(c) For level
80%
and sample size
29
(d) For level
98%
and sample size
12

For parts a and b , use technology to estimate the
following.
a) The critical value of t for a 90 % confidence interval with
df=2.
b) The critical value of t for a 95 % confidence interval with
df=104.

Find the critical value
t/α2
needed to construct a confidence interval of the given level
with the given sample size. Round the answers to three decimal
places.
Part 1 of 4
(a) For level
99%
and sample size
5
Part 2 of 4
(b) For level
90%
and sample size
14
Part 3 of 4
(c) For level
99.5%
and sample size
28
Part 4 of 4
(d) For level
95%
and sample size
11

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 7 minutes ago

asked 12 minutes ago

asked 27 minutes ago

asked 1 hour ago

asked 2 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago

asked 4 hours ago

asked 4 hours ago

asked 4 hours ago