DestinyKromberg1400 DestinyKromberg1400

19-12-2022
Mathematics

Answered

Jamie, a bowler, claims that her bowling score is less than 168 points, on average. Several of her teammates do not believe her, so she decides to do a hypothesis test, at a 1% significance level, to persuade them. She bowls 17 games. The mean score of the sample games is 155 points. Jamie knows from experience that the standard deviation for her bowling score is 19 points. H0: μ≥168; Ha: μ<168 α=0.01 (significance level)
What is the test statistic (z-score) of this one-mean hypothesis test, rounded to two decimal places?

Answer :

Other Questions

A business owner claims that the proportion of online orders is greater than 75%. To test this claim, the owner checks the next 1000 orders and determines that

A researcher claims that the proportion of people who are right-handed is 70%. To test this claim, a random sample of 600 people is taken and its determined tha

On the first statistics test of the semester in an introductory statistics class, the test scores were approximately normally distributed with 4 = 83.2 and 0 =4

a test is given to a large cohort of sociology students at a major state university. the scores are normally distributed with a mean score of 75 and a standard

Last summer, five randomly selected students took a math aptitude test before they began their statistics course in the fall. The data on (i) math aptitude test

calculate the (estimated) standard error for the sample mean in this question. round to 3 decimal places (example: 0.123)

The variable X is normally distributed. The mean is μ = 60.0 and the standard deviation is σ = 4.0. Find P(X < 53.0).

How would you create a statistical analysis based on the scenario below? What level of significance would you test at and why? A researcher is examining prefere

we're interested in whether there's a relationship between the visual and readwrite learning styles of biology students. we know that the standard deviation of