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Questions (173)

A 99% confidence level requires ? SubjectsA 90% confidence level requires ? Subjects How does the decrease in confidence affect
1. 1 answer
2. 103 views
Determine and interpret a 95% confidence interval for the mean amount of time Americans age 15 or older spend eating and
1. 1 answer
2. 156 views
There are more than 200 million people nationally age 15 or older explain why this along with the fact that the data were
1. 1 answer
2. 152 views
A histogram of time spent eating and drinking each day is skewed right. Use this result to explain why a large sample size is
1. 1 answer
2. 241 views
A nutritionist wants to determine how much time nationally people spend eating and drinking suppose for arándome sample of 978
1. 1 answer
2. 149 views
If the sample size is 13 what condition must be satisfied to compute the confidence interval?
1. 1 answer
2. 155 views
Compare the results to those obtained in part a how does increasing the level of confidence affect the size of the margin of
1. 1 answer
2. 145 views
Construct a 99% confidence interval about if the sample size n is 34 lower bound upper bound
1. 1 answer
2. 150 views
How does increasing the sample size affect the margin of error e?
1. 1 answer
2. 124 views
Construct a 95% confidence interval about if the sample size n is 61
1. 1 answer
2. 118 views
Construct a 95% confidence interval about if the sample size is 34
1. 1 answer
2. 150 views
Construct a 95% confidence interval about null if the sample size n is 34 lower boundUpper bound
1. 1 answer
2. 160 views
Find the critical t value that corresponds to 70% confidence assume 23 degrees of freedom
1. 1 answer
2. 201 views
What is the general relationship if any between the sample size and the margin of error?
1. 1 answer
2. 103 views
By how many times does the sample size have to be increased to decrease the margin of error by a factor of 1/5?
1. 1 answer
2. 108 views
She does not use any prior estimate?
1. 1 answer
2. 98 views
A researcher wishes to estimate the proportion of adults who have high speed internet access what size sample should be obtained
1. 1 answer
2. 213 views
A researcher wishes to estimate the proportion of adults who have high speed internet access what size sample should be obtained
1. 1 answer
2. 181 views
A National survey of 1000 adult citizens of a nation found that 18% dreaded Valentine’s Day the margin of error for the survey
1. 1 answer
2. 206 views
Determine the point estimate of the population proportion the margin of error for the following confidence interval and the
1. 1 answer
2. 139 views
How likely are the results of your sample if the population of voters in the town in favor of the referendum is 0.48
1. 1 answer
2. 87 views
Describe the sampling distribution of pN=18,000, n=450, p=0.4
1. 1 answer
2. 95 views
The probability that the mean of a random sample of 22time intervals is more than 94 minutes is approximately?
1. 1 answer
2. 104 views
The probability that the mean of a random sample of 23 time intervals is more than 94 minutes is approximately?
1. 1 answer
2. 106 views
The average score of all golfers for a particular course has a mean of 60 and a standard deviation of 4 suppose 64 golfers
1. 1 answer
2. 154 views
An insurance company crashed four cars of the same model at 5 miles per hour the costs of repair for each of the crashes were
1. 2 answers
2. 207 views
Determine the individuals who will be administered the survey randomly select a number from 1 to k suppose the we randomly
1. 1 answer
2. 175 views
The human resource department at a certain company wants to conduct a survey regarding worker benefits. The department has an
1. 1 answer
2. 200 views
The human resource department at a certain company wants to conduct a survey regarding worker benefits. The department has an
1. 1 answer
2. 174 views
A contingency table relates?
1. 1 answer
2. 92 views
The following data represent the living situation of newlyweds in a large metropolitan area and their annual household income.
1. 1 answer
2. 119 views
Match the coefficient of determination to the scatter diagram. The scales on the the x-axis and y-axis are the same for each
1. 1 answer
2. 145 views
At one point the average price of regular unleaded gasoline was 3.44 per gallon Assume that the standard deviation price per
1. 1 answer
2. 185 views
The mean waiting time at the drive through of a fast food restaurant from the time an order is placed to the time the order is
1. 1 answer
2. 164 views
A credit score is used by credit agencies such as mortgage companies and banks to assess the creditworthiness of individuals
1. 1 answer
2. 202 views
Determine the critical values (s) for a two tailed test of a population mean at the a=0.10 level of significance based on a
1. 1 answer
2. 147 views
Determine the critical values ( s) for a left tailed test of a population mean at the a=0.05 level of significance based on a
1. 1 answer
2. 122 views
Determine the critical values(s) for a two tailed test of a population mean at the a=0.10 level of significance based on a
1. 1 answer
2. 193 views
Determine the critical values for (s) for a left tailed test of a population mean at a=0.05 level of significance based on a
1. 1 answer
2. 176 views
Determine the critical values (s) for a right-tailed test of a population mean at a=0.05 level of significance with 10 degrees
1. 1 answer
2. 139 views
According to a food website the mean consumption of popcorn annually by American is 62 quarts the marketing division of the food
1. 1 answer
2. 135 views
Suppose the bull hypothesis is rejected state the conclusion based on the results of the testThree years ago the mean price of a
1. 1 answer
2. 102 views
If x=47.4 and s =14.7 compute the Statistcs t0=
1. 1 answer
2. 87 views
The probability that a randomly selected fertilized egg takes over 22 days to hatch is
1. 1 answer
2. 135 views
If the experiment is for 21 days and out of a hundred fertilized eggs are randomly selected how many Would it be?
1. 1 answer
2. 97 views
How many of the 100 fertilized eggs are randomly selected
1. 1 answer
2. 127 views
Intérpret this probability select the correct choice belowA in every group of 100 fertilized eggs ? Eggs would be expected to
1. 1 answer
2. 206 views
The probability that a randomly selected fertilized egg hatches in less than 20 days is
1. 1 answer
2. 132 views
The mean incubation time for a type of fertilized egg kept at a certain temperature is 21 days suppose that the incubation times
1. 1 answer
2. 188 views
Assume the random variable x is normally distributed with a mean of 50 and standard deviation of 7 find the 77th percentileThe
1. 1 answer
2. 156 views
Draw a normal curve with the area corresponding to the probability shaded choose the correct graph below56 66 56 66 56 66 A) b)
1. 1 answer
2. 125 views
Assume that the random variable x is normally distributed with mean equaling 50 and standard deviation equaling 14 compute the
1. 1 answer
2. 105 views
P(x>37)=?
1. 1 answer
2. 163 views
Which of the following normal curves corresponds to p(x>37)? A ) b) c) or d?
1. 1 answer
2. 104 views
The figure to the right represents the normal curve with (backward 4)=266 days and zero with a tail =16 days the area between
1. 0 answers
2. 114 views
The figure to the right represents the normal curve with (backward 4)=266 days and zero with a tail =16 days the area between
1. 0 answers
2. 113 views
266 and 16 daysProvide a second interpretation of the area using the given values The probability that a randomly selected human
1. 1 answer
2. 120 views
Provide a second interpretation of the area using the given valuesThe probability that a randomly selected human pregnancy lasts
1. 0 answers
2. 113 views
Suppose the lengths of human pregnancies are normally distributed with (backward 4)=266 days and (zero with a tail)=16 daysThe
1. 1 answer
2. 165 views
The graph of a normal curve is given use the graph to identify the value of backward 4 and circle with a tailThe value of
1. 1 answer
2. 115 views
One graph in the figure represents a normal distribution with a mean (backward 4)=14and a standard deviation(0with a little
1. 1 answer
2. 133 views
The relative frequency histogram represents the length of phone calls on George’s cell phone during the month of September
1. 1 answer
2. 158 views
State the criteria for a binomial probability experimentChoose the correct answer Each trial has two possible mutually exclusive
1. 1 answer
2. 194 views
State the criteria for a binomial probability experimentChoose the correct answer Each trial has two possible mutually exclusive
1. 0 answers
2. 185 views
Use n=6 and p=0.3 to complete parts a through d belowA) construct a binomial probability distribution with the given parameters
1. 1 answer
2. 171 views
In a game of roulette a player can place a $4 bet on the number 36 and have a 1/38 probability of winning if the metal ball
1. 1 answer
2. 173 views
If the researcher decides to test this hypothesis as the a=0.05 level of significance determine the critical values although
1. 1 answer
2. 149 views
To test H0: =60 versus h1:<60 a random sample of size n= 23 is obtained from a population that is known to be normally
1. 1 answer
2. 140 views
Suppose that e and f are two events and that p(e)=0.1 and p(fIe)=0.4 what is p(e and f)
1. 1 answer
2. 108 views
About 11%of the population of a large country is hopelessly romantic if two people are randomly selected what is the possibility
1. 1 answer
2. 150 views
Suppose that events e and f are independent p(f)=0.7 and p(f)=0.8 what is the p(e and f)
1. 1 answer
2. 118 views
Fill in the blankTwo events e and f are ? If the occurrence of event e in a probability experiment does not affect the
1. 1 answer
2. 129 views
Find the probability of the indicated event if p(e) =0.25 and p(f) =0.50Find P(e or f) if p( e and f) =0.20
1. 1 answer
2. 74 views
A probability experiment is conducted in which the sample space of the experiment is s= 2,3,4,5,6,7,8,9,10,11,12,13 event f=
1. 1 answer
2. 150 views
A probability experiment is conducted in which the sample space of the experiment is s= 2,3,4,5,6,7,8,9,10,11,12,13 event f=
1. 1 answer
2. 160 views
List the outcomes in f or g
1. 1 answer
2. 86 views
A probability experiment is conducted in which the sample space of the experiment is s={2,3,4,5,6,7,8,9,10,11,12,13} event
1. 1 answer
2. 168 views
Let the sample space be s={1,2,3,4,5,6,7,8,9,10} suppose the outcomes are equally likely compute the probability of the event E=
1. 1 answer
2. 126 views
Is the following a probability model? What do we call the outcome “red”?Color red 0,green 0.1,blue 0.15, brown0.25,yellow
1. 1 answer
2. 122 views
The grade appeal process at a university requires that a jury be structured by selecting six individuals randomly from a pool of
1. 1 answer
2. 145 views
Outside a home there is a 7-key keypad numbered 1 through 7 the correct five digit code will open the garage door the number can
1. 1 answer
2. 160 views
Find the value of the combination3C1=?
1. 1 answer
2. 101 views
Find the value of the permutation 6P6?Type a whole number
1. 1 answer
2. 122 views
Find the value of the factorial 3!3!=? Type a whole number
1. 1 answer
2. 100 views
Suppose there is a 16.4% probability that a randomly selected person aged 25 years or older is a jogger in addition there is a
1. 1 answer
2. 154 views
The data represents the number of driving fatalities for a certain area by age for male and female driversUnder 16 male (202
1. 1 answer
2. 179 views
The data represents the number of driving fatalities for a certain area by age for male and female driversUnder 16 male (202
1. 1 answer
2. 193 views
The data represents the number of driving fatalities for certain area by age for male and female drivers
1. 1 answer
2. 116 views
Thank you so much Helper you really did help 💕😊
1. 1 answer
2. 91 views
Choose an international company. what are the characteristics that make this company different from domestic companies
1. 1 answer
2. 561 views
Think of two or three informal groups that you are currently a part of or have been in the past
1. 3 answers
2. 440 views
The Soft Step Floor Co. Purchases carpeting for $5.12 per square yard and marks it up 55% based on the selling price. What is
1. 1 answer
2. 505 views
What payment should be made on an invoice in the amount of $3400 dated August 7 if the terms of the sale are 3/15,2/30,n/45 and
1. 0 answers
2. 568 views
Paul's credit card closes on the 14th of the month and his payment is due on the 25th . If he purchases a $300 stereo on the
1. 0 answers
2. 442 views
Claire earned $9000 in a 15 month CD that pays an annual 8.67% . How much did Claire earn with this? Could you show me the steps
1. 1 answer
2. 653 views
Explanation on how to work this problem.Claire has invested $10,000 in a 15 month CD that pays an annualized rate of 9.02% . How
1. 1 answer
2. 1,635 views
Sue how did you get the 0.05 % on my last question. And here is another problem. Claire is depositing $14,000 in a 24 month CD
1. 1 answer
2. 508 views
How do you figure out these kind of problems. Lisa is depositing $2700 in a 6 month CD that pays 3.71% interest. How much will
1. 1 answer
2. 387 views
What is the name of a personal digital assistant in apples smart phone
1. 2 answers
2. 581 views
Please explain how to set this problem:A solution has a density of 1.73 g/ml. If it's weighs 4.3 ounces, what is the volume. ?
1. 1 answer
2. 510 views

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