Question

Test the claim that the mean GPA of night students is significantly different than 2.7 at the 0.02 significance level.

Based on a sample of 80 people, the sample mean GPA was 2.74 with a standard deviation of 0.05

The test statistic is:

The positive critical value is:

how do you do this on a ti 84

I tried the t test but it says it is not right

Expert Answer

1 Rating

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Advanced Topics in Statistics

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: 1.Miller (2008) examined the energy drink consumption of college undergraduates and found that males...

A: Hey, since there are multiple subparts posted, we will answer first three question. If you want any ...

Q: In a recent poll, 250 people were asked if they liked dogs, and 17% said they did. Find the Margin o...

A: Step-by-step procedure to obtain the value of  using STATKEY:Choose Normal under Theoretical Distrib...

Q: a bowl of fruit has four apples, two oranges, one banana, and three peaches. Kate reaches in and pic...

A: Given:A bowl contains 4 apples, 2 oranges, 1 banana and 3 peaches.Total no. of fruits in a bowl is 4...

Q: a marketing firm asked a random set of married and single men how much they were willing to spend on...

A: The null and alternative hypotheses are stated below:Null hypothesis: There is no difference in the ...

Q: When using the central limit theorem for means with n = 57, it is not necessary to assume the distri...

A: Central limit theorem:According to the theorem, even if the population is not normal, the sample mea...

Q: A crossover trial is a type of experiment used to compare two drugs. Subjects take one drug for a pe...

A: The provided table can be tabulated as:

Q: A study was conducted to test the effect of self-imagery on social anxiety. Participants in the stud...

A: According to the provided question, a study was conducted to test the effect of self-imaginary on so...

Q: Suppose that the insurance companies did do a survey. They randomly surveyed 400 drivers and found t...

A: Given: n= 400 and X= 320The sample proportion can be calculated as:

Q: Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval...

A: Introduction:The 100 (1 – α) % confidence interval for the population proportion, p is: (p̂ – (zα/2­...