Ja’Kelle had $172 to give to 5 of her nieces and nephews as rewards for helped paint her room. How much did each of the five kid
1 answer:
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Answer:
Step-by-step explanation:
we know that
The surface area of the cone is given by the formula
where
r is the radius of the base
l is the slant height
we have
substitute
Answer:
a) Null and alternative hypotheses are:
: mu=183 days
: mu>183 days
b) If the true mean is 190 days, Type II error can be made.
Step-by-step explanation:
Let mu be the mean life of the batteries of the company when it is used in a wireless mouse
Null and alternative hypotheses are:
: mu=183 days
: mu>183 days
Type II error happens if we fail to reject the null hypothesis, when actually the alternative hypothesis is true.
That is if we conclude that mean life of the batteries of the company when it is used in a wireless mouse is at most 183 days, but actually mean life is 190 hours, we make a Type II error.