Question
In: Statistics and Probability
The average fee in a private school in Georgia is more than $13,000 for one year...
The average fee in a private school in Georgia is more than $13,000 for one year with σ = $3000. Assume the population is normally distributed. A random sample of 15 private schools in Georgia yielded a mean yearly fee of $14,500. Test using the critical value method if the population mean of the yearly fee in a private school in Georgia is more than $13,000, using α = 0.10.
| a. |
Zcrit = 1.28, reject H0. |
| b. |
Zcrit = 1.28, do not reject H0. |
| c. |
Zcrit = 2.34, do not reject H0. |
| d. |
Zcrit = 2.34, reject H0. |
Solutions
orchestra answered 1 year agoRelated Solutions
Claim: “Golfers who had one lesson with this instructor had an average increase of more than...
Claim: “Golfers who had one lesson with this instructor had an
average increase of more than 15 yards in the distance of their
drives.”
A random sample of 5 golfers who had attended a free trial lesson
with this golf instructor was selected. Before the lesson, each of
these golfers hit several drives from a tee, and the average
distance for each golfer was recorded (in yards). This process was
repeated after the lesson. Assume that the differences between the...
According to the College Board, undergraduate students spend on average more than $1000 per year on...
According to the College
Board, undergraduate students spend on average more than $1000 per
year on textbooks.* As a college student, you've
suffered the high prices of textbooks, and you're going to do
something about it! Let's say that after you graduate, you decide
to start your own textbook publishing company. You will need to
find a way to appeal to both professors and students with high
quality and reasonably-priced products, but you've also got to make
a profit.
Feel...
Six-year-old Georgia is about to enter first grade in an elementary school that became “nut free”...
Six-year-old Georgia is about to enter first grade in an
elementary school that became “nut free” at the beginning of the
new school year. Georgia’s mother, Robin, wants to prepare
nutritionally well-balanced lunches that do not contain nuts or nut
products for her daughter to take to school. Georgia is not a picky
eater, so she will consume a wide variety of foods. Also, Robin has
a small insulated container to keep foods cold until lunchtime.
Georgia can purchase low-fat...
A male employee was hired by a company with more than 15 employees. Approximately one year...
A male employee was hired by a company with more than 15
employees. Approximately one year into the employment the employee
told his supervisor that he was a transsexual and came dressed to a
party as a woman. The employee then announced he would be
transitioning from a male to a female. This meant she would be
coming to the office dressed as a woman and would legally adopt a
female name. Following this announcement the employee was
terminated. The...
Walmart has an interest in monitoring the average back-to-school spending for grade-school students year to year....
Walmart has an interest in monitoring the average
back-to-school spending for grade-school students year to year.
Every year the back-to-school spending data is published by the
National Retail Federation. The following table shows the average
back-to-school spending of households randomly sampled in 2016 and
2017 along with the population standard deviations and sample sizes
for each sample.
2016 2017
Sample mean $606.40 $655.27
Sample size 35 38
Population standard deviation $160 $173
a. State the correct null and alternative hypotheses....
Walmart has an interest in monitoring the average back-to-school spending for grade-school students year to year....
Walmart has an interest in monitoring the average
back-to-school spending for grade-school students year to year.
Every year the back-to-school spending data is published by the
National Retail Federation. The following table shows the average
back-to-school spending of households randomly sampled in 2016 and
2017 along with the population standard deviations and sample sizes
for each sample.
2016 2017
Sample mean $606.40 $655.27
Sample size 35 38
Population standard deviation $160 $173
a. State the correct null and alternative hypotheses....
Walmart has an interest in monitoring the average back-to-school spending for grade-school students year to year....
Walmart has an interest in monitoring the average back-to-school
spending for grade-school students year to year. Every year the
back-to-school spending data is published by the National Retail
Federation. The following table shows the average back-to-school
spending of households randomly sampled in 2016 and 2017 along with
the population standard deviations and sample sizes for each
sample. 2016 2017 Sample mean $606.40 $655.27 Sample size 35 38
Population standard deviation $160 $173 a. State the correct null
and alternative hypotheses....
Does the average Presbyterian donate more than the average Catholic in church on Sundays? The 40...
Does the average Presbyterian donate more than the average
Catholic in church on Sundays? The 40 randomly observed members of
the Presbyterian church donated an average of $24 with a standard
deviation of $12. The 54 randomly observed members of the Catholic
church donated an average of $17 with a standard deviation of $14.
What can be concluded at the α = 0.05 level of significance? For
this study, we should use Select an answer The null and alternative
hypotheses...
Does the average Presbyterian donate more than the average Catholic in church on Sundays? The 44...
Does the average Presbyterian donate more than the average
Catholic in church on Sundays? The 44 randomly observed members of
the Presbyterian church donated an average of $22 with a standard
deviation of $12. The 58 randomly observed members of the Catholic
church donated an average of $17 with a standard deviation of $10.
What can be concluded at the αα = 0.10 level of significance?
For this study, we should use Select an answert-test for the
difference between two...
Is carrying more than one EpiPen advisable?
Is
carrying more than one EpiPen advisable?
ADVERTISEMENT
ADVERTISEMENT
Latest Questions
- The following data are accumulated by Eco Labs, Inc. in evaluating two competing capital investment proposals:...
- There are a range of incentive plans for individuals and groups or teams. Think like an...
- Specific heat of ice: 2.09 J/(g⋅∘C Specific heat of liquid water: 4.18 J/(g⋅∘C) Enthalpy of fusion:...
- Two charges are placed on the x axis. One of the charges (q1 = +6.23C) is...
- Describe an action a regulatory agency took against a business in the past 6 months. Post...
- Performance and Breach Under what circumstances should courts not allow fully informed contracting parties to agree...
- Rubash Company recently issued two types of bonds. The first issue consisted of 20-year straight (no...
ADVERTISEMENT