Construct a 95% confidence interval for the standard
deviation for both companies. Interpret and compare the...
Construct a 95% confidence interval for the standard
deviation for both companies. Interpret and compare the
results. Company 1: S=1.38, n=36, mean=11.42. Company 2: S=55.27,
n=36, mean=282.86
Construct a 95% confidence interval for the population standard
deviation of a random sample of 15 crates which have a mean weight
of 165.2 points and a standard deviation of 12.9 pounds. Assume the
population is normallyn distributed.
A. 9.9, 18.8
B. 9.4, 20.3
Please show work.
Construct the 95% confidence interval for AOret using its the
mean
and standard deviation. Construct another 95% confidence interval
for AOret
using the mean of AOret and the average AOSD. Explain which one is
more
reliable.
Date
AllOrd
Aoret
AOSD
AUDUSD
AUDSD
TV (m)
IR (%)
MV
PE
2000/4/28
3085.1
0.0703
0.5909
0.0253
5122.6
5.72
634878
22.08
2000/5/31
3040.6
-1.44%
0.0451
0.5735
0.0358
6373.5
5.98
616440
21.36
2000/6/30
3257.6
7.14%
0.0337
0.5986
0.0383
7439.0
6
661306
22.74
2000/7/31
3213.6
-1.35%...
Arandomsampleofthebirthweightsof24babieshasameanof3103 grams and
a standard deviation of 696 grams. Construct a 95% confidence
interval estimate of the mean birth weight for all such babies.
Arandomsampleofthebirthweightsof24babieshasameanof3103 grams and
a standard deviation of 696 grams. Construct a 95% confidence
interval estimate of the mean birth weight for all such babies
Problem:
Construct and interpret a 90%, 95%, and 99% confidence interval for
the mean heights of either adult females or the average height of
adult males living in America. Do not mix genders in your sample as
this will skew your results. Gather a random sample of size 30 of
heights from your friends, family, church members, strangers, etc.
by asking each individual in your sample his or her height. From
your raw data convert individual heights to inches....
Refer to Table 2.9. Construct and interpret a 95% confidence interval for the population (a) odds ratio, (b) difference of proportions, and (c) relative risk between seat-belt use and type of injury.
Give and interpret the 95% confidence intervals for males and a
second 95% confidence interval for females on the SLEEP variable.
Which is wider and why?
Known values for Male and Female:
Males: Sample Size = 17; Sample Mean = 7.765;
Standard Deviation = 1.855
Females: Sample Size = 18; Sample Mean = 7.667;
Standard Deviation = 1.879
Using t-distribution considering sample sizes (Male/Female
count) are less than 30
Use the standard normal distribution or the t-distribution to
construct a 95% confidence interval for the population mean.
Justify your decision. If neither distribution can be used,
explain why. Interpret the results. In a random sample of 17
patients at a hospital's minor emergency department, the mean
waiting time before seeing a medical professional was 14 minutes
and the standard deviation was 9 minutes. Assume the waiting times
are not normally distributed. Which distribution should be used to
construct the...
Use the standard normal distribution or the t-distribution to
construct a 95% confidence interval for the population mean.
Justify your decision. If neither distribution can be used,
explain why. Interpret the results. In a random sample of 47
people, the mean body mass index (BMI) was 27.7 and the standard
deviation was 6.02. Which distribution should be used to construct
the confidence interval? Choose the correct answer below: