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In: Math
A recent study found that 61 children who watched a commercial for potato chips featuring a...
A recent study found that 61 children who watched a commercial for potato chips featuring a celebrity endorser ate a mean of 38 grams of potato chips as compared to a mean of 25 grams for 51 children who watched a commercial for an alternative food snack. Suppose that the sample standard deviation for the children who watched the celebrity-endorsed commercial was 21.1 grams and the sample standard deviation for the children who watched the alternative food snack commercial was 12.8 grams. Complete parts (a) through (c) below.
What is the test statistic?
Identify the p-value for this test from the technology output, rounding to three decimal places.
b. Assuming that the population variances are equal, construct a 95% confidence interval estimate of the difference mu 1 minus mu 2 between the mean amount of potato chips eaten by the children who watched the celebrity-endorsed commercial and children who watched the alternative food snack commercial.determine the 95% confidence interval using technology, rounding to two decimal places?
c. Compare and discuss the results of (a) and (b).
Solutions
Expert Solution
From the given problem
A recent study found that 61 children who watched a commercial for potato featuring a celebrity endorer ate a mean of 38 grams of potato chips as compared to a mean of 25 grams for 51 children who watched a commercial for an alternative food snack.Suppose that the sample standard deviation for the children who watched the celebrity-endorsed commercial was 21.1 commercial was 12.8 grams
milcah answered 9 months agoRelated Solutions
A recent study found that 64 children who watched a commercial for potato chips featuring a...
A recent study found that 64 children who watched a commercial
for potato chips featuring a celebrity endorser ate a mean of 40
grams of potato chips as compared to a mean of 25 grams for 54
children who watched a commercial for an alternative food snack.
Suppose that the sample standard deviation for the children who
watched the celebrity-endorsed commercial was 21.5 grams and the
sample standard deviation for the children who watched the
alternative food snack commercial was...
A recent study found that 62 children who watched a commercial for potato chips featuring a...
A recent study found that 62 children who watched a commercial
for potato chips featuring a celebrity endorser ate a mean of 37
grams of potato chips as compared to a mean of 27 grams for 52
children who watched a commercial for an alternative food snack.
Suppose that the sample standard deviation for the children who
watched the celebrity-endorsed commercial was 21.1 grams and the
sample standard deviation for the children who watched the
alternative food snack commercial was...
A recent study found that 63 children who watched a commercial for potato chips featuring a...
A recent study found that 63 children who watched a commercial
for potato chips featuring a celebrity endorser ate a mean of 35
grams of potato chips as compared to a mean of 26 grams for 53
children who watched a commercial for an alternative food snack.
Suppose that the sample standard deviation for the children who
watched the celebrity-endorsed commercial was 21.4 grams and the
sample standard deviation for the children who watched the
alternative food snack commercial was...
A recent study found that 63 children who watched a commercial for potato chips featuring a...
A recent study found that 63 children who watched a commercial
for potato chips featuring a celebrity endorser ate a mean of 38
grams of potato chips as compared to a mean of 25 grams for 53
children who watched a commercial for an alternative food snack.
Suppose that the sample standard deviation for the children who
watched the celebrity-endorsed commercial was 21.3 grams and the
sample standard deviation for the children who watched the
alternative food snack commercial was...
A recent study found that 64 children who watched a commercial for potato chips featuring a...
A recent study found that 64 children who watched a commercial
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Suppose that the sample standard deviation for the children who
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