Say that on average teenagers eat 10 slices of pizza each week, with a 95% confidence interval of (8-12).  We take a sample of teenagers and find that this group eats an average of 9 slices each week.  What can we say about the teenagers in the sample in relation to the confidence interval?

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A: Given information Total caterpillars (n) = 394 Number of butterflies(x) = 48 Sample proportion

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

A: Given data, n=446x=46p=xn=46446=0.1031z-value at 95% Confidence is Zc=1.96

Q: Over 1034 people, there are 840 who are interested to get the Covid-19 vaccine. Give a 96%…

A:

Q: Explain why it is appropriate to use the t confidence interval to estimate the mean time spent…

A: Givensample size(n)=1087x=5.5Median =1

Q: initiative is between (round to 3 decimal places) and (round to 3 decimal places). b. If many groups…

A: given  n1=579x1=408n2=546x2=450 then the proportion are  p1=x1n1=408579=0.704663…

Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

A: (a)   Obtain the 90% confidence interval for the proportion of all caterpillars that eventually…

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

A:

Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

A: Solution: a. Let X be the number of caterpillars that eventually become butterflies and n be the…

Q: A 95% confidence interval for the difference in the proportions of red candies for the plain and…

A: Given: Confidence level = 0.95 Confidence interval of difference in the proportions of red candies…

Q: To construct a confidence interval for the difference between two population means ₁-₂, use the…

A:

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A:

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A: It is given that sample size (n) is 354and x is 52.

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

A: It is given that, the number of caterpillars lived to become butterflies (x) is 43 and the sample…

Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

A: Given data,n=431x=43p=xn=43431=0.0998z-value at 90% confidence is Zc=1.645

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

A: Confidence interval: The (1-α) % confidence interval for proportion p is given by,

Q: You are constructing a 99% confidence interval for the proportion of all caterpillars that…

A: Given information- Sample size, n = 396 We have given that out of 396 randomly selected caterpillars…

Q: 4. Ellie and Alec are each attempting to estimate the proportion of coffee drinkers who consume more…

A: Given that - Ellie and Alec each of them have obtained a random sample of coffee drinker and in each…

Q: In a survey of 400 UAE residents, 72 said they trust cryptocurrencies. Find the Lower Confidence…

A:

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A: It is given that sample size (n) is 433and x is 47.

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

A: Confidence interval:The (1-α) % confidence interval for proportion p is given by,

Q: A philanthropic organisation sent free mailing labels and greeting cards to a random sample of…

A: Given that n=100,000 x=5177 p^=xn=5177100000=0.005177 Given confidence level is 90% Significance…

Q: Based on meteorological data for the past century, a local TV weather forecaster estimates that the…

A: Given,meanx¯=23margin of error(E)=2

Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

A: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A: In statistical inference, there are two types of estimation,  Point estimation and Interval…

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A: Obtain the 99% confidence interval for the proportion of all caterpillars that eventually become…

Q: 13. In a recent survey, a random sample of OSU football fans was asked if they would consider dating…

A:

Q: A random sample of 1650 Tennessee residents is taken. Of those 1650 residents, 1200 said they…

A: Given Data Sample Size, n = 1650 Number of successes, x = 1200 Significance level,…

Q: An avid birdwatcher wants to know if the number of goslings per goose in his lake differs from the…

A:

Q: One researcher finds a 95% confidence interval for a prevalence of heart disease in a population as…

A: We have given that  95% confidence interval is  26.2 percent with margin of error 4.2 percent    90%…

Q: A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic…

A: Obtain the 90% confidence interval for the true difference in blood pressure for each patient after…

Q: According to the Rule of Three, when we have a sample size n with x= 0 successes, we have 95%…

A: Given, if there is a sample of size n with x=0 then the 95% confidence that the true population…

Q: Step 2 of 4 :   Calculate the sample standard deviation of the paired differences. Round your answer…

A: The difference is, Before After Difference 174 166 8 176 164 12 204 194 10 180 157 23…

Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

A: Confidence interval: The (1-α) % confidence interval for proportion p is given by,

Q: Suppose a 95% confidence interval for the proportion of Americans who exercise regularly is 0.29 to…

A: Given information: The 95% confidence interval for the proportion of Americans who exercise…

Q: You are interested in constructing a 95% confidence interval for the proportion of all caterpillars…

A: The sample size (n)= 405 Number of caterpillars lived to become butterflies (x) = 54   The sample…

Q: The political candidate has collected data via a survey to determine what proportion of voters in a…

A: Ti find: The 95% confidence interval

Q: A consumer group reports that a 90% confidence interval for the mean fat content of chicken nuggets…

A: Given that the confidence interval is Lower limit=14 Upper limit=18 Point estimate p=?

Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

A: From the provided information, Sample size (n) = 378 From which 45 lived to become butterflies, so…

Q: a. With 95% confidence the proportion of all smart phones that break before the warranty expires is…

A: Given that sample size is n = 1503 And number of smartphones broke before the warranty expired, X =…

Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

A: Given data: Confidence level  = 90 % Sample size (n) = 384 x = 46

Q: How large a sample is needed if we want to believe 98% that the proportion of the sample found lies…

A:

Q: When joint confidence intervals for β0 and β1 are developed by the Bonferroni method with a family…

A: Confidence interval: Confidence interval is an interval such that the probability of the unknown…

Q: You are interested in constructing a 90% confidence interval for the proportion of all caterpillars…

A: Given X=44 n=386

Q: A pharmaceutical company claims that its new drug reduces systolic blood pressure. The systolic…

A: Obtain the 99% confidence interval for the true difference in blood pressure for each patient after…

Q: find a 95% confidence interval for the true proportion of grapes that are used for raisins if a…

A: Given In the sample of 340 bins of grapes 25.1% are used for raisins.

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A: (a) Given that,  x=54,n=382 The sample proportion is, Critical values: By using the standard normal…

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A:

Q: Suppose a researcher takes a random sample of 1,000 students from a university and creates a 95%…

A: Here AS per policy I should have to answer first main question even though I have calculated 2…

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A: Obtain the 99% confidence interval for the proportion of all caterpillars that eventually become…

Q: You are interested in constructing a 99% confidence interval for the proportion of all caterpillars…

A: Given information Total caterpillars (n) = 400 Number of butterflies(x) = 40 Sample proportion:…